b2ab15c2e1
Specifically, during "Align View onto Workplane" when we are locked in workplane (in which case it always aligns onto that workplane).
1110 lines
45 KiB
C++
1110 lines
45 KiB
C++
//-----------------------------------------------------------------------------
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// Top-level implementation of the program's main window, in which a graphical
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// representation of the model is drawn and edited by the user.
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//
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// Copyright 2008-2013 Jonathan Westhues.
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//-----------------------------------------------------------------------------
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#include "solvespace.h"
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#include "config.h"
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#define mView (&GraphicsWindow::MenuView)
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#define mEdit (&GraphicsWindow::MenuEdit)
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#define mClip (&GraphicsWindow::MenuClipboard)
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#define mReq (&GraphicsWindow::MenuRequest)
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#define mCon (&Constraint::MenuConstrain)
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#define mFile (&SolveSpaceUI::MenuFile)
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#define mGrp (&Group::MenuGroup)
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#define mAna (&SolveSpaceUI::MenuAnalyze)
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#define mHelp (&SolveSpaceUI::MenuHelp)
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#define DEL DELETE_KEY
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#define ESC ESCAPE_KEY
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#define S SHIFT_MASK
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#define C CTRL_MASK
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#define F(k) (FUNCTION_KEY_BASE+(k))
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#define TN MenuKind::NORMAL
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#define TC MenuKind::CHECK
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#define TR MenuKind::RADIO
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const GraphicsWindow::MenuEntry GraphicsWindow::menu[] = {
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//level
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// label id accel ty fn
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{ 0, "&File", Command::NONE, 0, TN, NULL },
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{ 1, "&New", Command::NEW, C|'N', TN, mFile },
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{ 1, "&Open...", Command::OPEN, C|'O', TN, mFile },
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{ 1, "Open &Recent", Command::OPEN_RECENT, 0, TN, mFile },
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{ 1, "&Save", Command::SAVE, C|'S', TN, mFile },
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{ 1, "Save &As...", Command::SAVE_AS, 0, TN, mFile },
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{ 1, NULL, Command::NONE, 0, TN, NULL },
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{ 1, "Export &Image...", Command::EXPORT_PNG, 0, TN, mFile },
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{ 1, "Export 2d &View...", Command::EXPORT_VIEW, 0, TN, mFile },
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{ 1, "Export 2d &Section...", Command::EXPORT_SECTION, 0, TN, mFile },
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{ 1, "Export 3d &Wireframe...", Command::EXPORT_WIREFRAME, 0, TN, mFile },
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{ 1, "Export Triangle &Mesh...", Command::EXPORT_MESH, 0, TN, mFile },
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{ 1, "Export &Surfaces...", Command::EXPORT_SURFACES, 0, TN, mFile },
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{ 1, "Im&port...", Command::IMPORT, 0, TN, mFile },
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#ifndef __APPLE__
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{ 1, NULL, Command::NONE, 0, TN, NULL },
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{ 1, "E&xit", Command::EXIT, C|'Q', TN, mFile },
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#endif
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{ 0, "&Edit", Command::NONE, 0, TN, NULL },
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{ 1, "&Undo", Command::UNDO, C|'Z', TN, mEdit },
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{ 1, "&Redo", Command::REDO, C|'Y', TN, mEdit },
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{ 1, "Re&generate All", Command::REGEN_ALL, ' ', TN, mEdit },
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{ 1, NULL, Command::NONE, 0, TN, NULL },
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{ 1, "Snap Selection to &Grid", Command::SNAP_TO_GRID, '.', TN, mEdit },
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{ 1, "Rotate Imported &90°", Command::ROTATE_90, '9', TN, mEdit },
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{ 1, NULL, Command::NONE, 0, TN, NULL },
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{ 1, "Cu&t", Command::CUT, C|'X', TN, mClip },
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{ 1, "&Copy", Command::COPY, C|'C', TN, mClip },
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{ 1, "&Paste", Command::PASTE, C|'V', TN, mClip },
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{ 1, "Paste &Transformed...", Command::PASTE_TRANSFORM, C|'T', TN, mClip },
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{ 1, "&Delete", Command::DELETE, DEL, TN, mClip },
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{ 1, NULL, Command::NONE, 0, TN, NULL },
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{ 1, "Select &Edge Chain", Command::SELECT_CHAIN, C|'E', TN, mEdit },
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{ 1, "Select &All", Command::SELECT_ALL, C|'A', TN, mEdit },
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{ 1, "&Unselect All", Command::UNSELECT_ALL, ESC, TN, mEdit },
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{ 0, "&View", Command::NONE, 0, TN, NULL },
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{ 1, "Zoom &In", Command::ZOOM_IN, '+', TN, mView },
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{ 1, "Zoom &Out", Command::ZOOM_OUT, '-', TN, mView },
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{ 1, "Zoom To &Fit", Command::ZOOM_TO_FIT, 'F', TN, mView },
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{ 1, NULL, Command::NONE, 0, TN, NULL },
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{ 1, "Align View to &Workplane", Command::ONTO_WORKPLANE, 'W', TN, mView },
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{ 1, "Nearest &Ortho View", Command::NEAREST_ORTHO, F(2), TN, mView },
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{ 1, "Nearest &Isometric View", Command::NEAREST_ISO, F(3), TN, mView },
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{ 1, "&Center View At Point", Command::CENTER_VIEW, F(4), TN, mView },
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{ 1, NULL, Command::NONE, 0, TN, NULL },
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{ 1, "Show Snap &Grid", Command::SHOW_GRID, '>', TC, mView },
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{ 1, "Use &Perspective Projection", Command::PERSPECTIVE_PROJ, '`', TC, mView },
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{ 1, NULL, Command::NONE, 0, TN, NULL },
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#if defined(__APPLE__)
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{ 1, "Show Menu &Bar", Command::SHOW_MENU_BAR, C|F(12), TC, mView },
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#endif
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{ 1, "Show &Toolbar", Command::SHOW_TOOLBAR, 0, TC, mView },
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{ 1, "Show Property Bro&wser", Command::SHOW_TEXT_WND, '\t', TC, mView },
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{ 1, NULL, Command::NONE, 0, TN, NULL },
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{ 1, "Dimensions in &Inches", Command::UNITS_INCHES, 0, TR, mView },
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{ 1, "Dimensions in &Millimeters", Command::UNITS_MM, 0, TR, mView },
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#if defined(HAVE_GTK) || defined(__APPLE__)
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{ 1, NULL, Command::NONE, 0, TN, NULL },
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{ 1, "&Full Screen", Command::FULL_SCREEN, C|F(11), TC, mView },
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#endif
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{ 0, "&New Group", Command::NONE, 0, TN, NULL },
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{ 1, "Sketch In &3d", Command::GROUP_3D, S|'3', TN, mGrp },
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{ 1, "Sketch In New &Workplane", Command::GROUP_WRKPL, S|'W', TN, mGrp },
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{ 1, NULL, Command::NONE, 0, TN, NULL },
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{ 1, "Step &Translating", Command::GROUP_TRANS, S|'T', TN, mGrp },
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{ 1, "Step &Rotating", Command::GROUP_ROT, S|'R', TN, mGrp },
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{ 1, NULL, Command::NONE, 0, TN, NULL },
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{ 1, "E&xtrude", Command::GROUP_EXTRUDE, S|'X', TN, mGrp },
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{ 1, "&Lathe", Command::GROUP_LATHE, S|'L', TN, mGrp },
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{ 1, NULL, Command::NONE, 0, TN, NULL },
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{ 1, "Link / Assemble...", Command::GROUP_LINK, S|'I', TN, mGrp },
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{ 1, "Link Recent", Command::GROUP_RECENT, 0, TN, mGrp },
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{ 0, "&Sketch", Command::NONE, 0, TN, NULL },
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{ 1, "In &Workplane", Command::SEL_WORKPLANE, '2', TR, mReq },
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{ 1, "Anywhere In &3d", Command::FREE_IN_3D, '3', TR, mReq },
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{ 1, NULL, Command::NONE, 0, TN, NULL },
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{ 1, "Datum &Point", Command::DATUM_POINT, 'P', TN, mReq },
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{ 1, "&Workplane", Command::WORKPLANE, 0, TN, mReq },
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{ 1, NULL, Command::NONE, 0, TN, NULL },
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{ 1, "Line &Segment", Command::LINE_SEGMENT, 'S', TN, mReq },
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{ 1, "C&onstruction Line Segment", Command::CONSTR_SEGMENT, S|'S', TN, mReq },
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{ 1, "&Rectangle", Command::RECTANGLE, 'R', TN, mReq },
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{ 1, "&Circle", Command::CIRCLE, 'C', TN, mReq },
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{ 1, "&Arc of a Circle", Command::ARC, 'A', TN, mReq },
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{ 1, "&Bezier Cubic Spline", Command::CUBIC, 'B', TN, mReq },
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{ 1, NULL, Command::NONE, 0, TN, NULL },
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{ 1, "&Text in TrueType Font", Command::TTF_TEXT, 'T', TN, mReq },
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{ 1, NULL, Command::NONE, 0, TN, NULL },
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{ 1, "To&ggle Construction", Command::CONSTRUCTION, 'G', TN, mReq },
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{ 1, "Tangent &Arc at Point", Command::TANGENT_ARC, S|'A', TN, mReq },
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{ 1, "Split Curves at &Intersection", Command::SPLIT_CURVES, 'I', TN, mReq },
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{ 0, "&Constrain", Command::NONE, 0, TN, NULL },
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{ 1, "&Distance / Diameter", Command::DISTANCE_DIA, 'D', TN, mCon },
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{ 1, "Re&ference Dimension", Command::REF_DISTANCE, S|'D', TN, mCon },
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{ 1, "A&ngle", Command::ANGLE, 'N', TN, mCon },
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{ 1, "Reference An&gle", Command::REF_ANGLE, S|'N', TN, mCon },
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{ 1, "Other S&upplementary Angle", Command::OTHER_ANGLE, 'U', TN, mCon },
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{ 1, "Toggle R&eference Dim", Command::REFERENCE, 'E', TN, mCon },
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{ 1, NULL, Command::NONE, 0, TN, NULL },
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{ 1, "&Horizontal", Command::HORIZONTAL, 'H', TN, mCon },
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{ 1, "&Vertical", Command::VERTICAL, 'V', TN, mCon },
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{ 1, NULL, Command::NONE, 0, TN, NULL },
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{ 1, "&On Point / Curve / Plane", Command::ON_ENTITY, 'O', TN, mCon },
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{ 1, "E&qual Length / Radius / Angle", Command::EQUAL, 'Q', TN, mCon },
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{ 1, "Length Ra&tio", Command::RATIO, 'Z', TN, mCon },
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{ 1, "Length Diff&erence", Command::DIFFERENCE, 'J', TN, mCon },
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{ 1, "At &Midpoint", Command::AT_MIDPOINT, 'M', TN, mCon },
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{ 1, "S&ymmetric", Command::SYMMETRIC, 'Y', TN, mCon },
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{ 1, "Para&llel / Tangent", Command::PARALLEL, 'L', TN, mCon },
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{ 1, "&Perpendicular", Command::PERPENDICULAR, '[', TN, mCon },
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{ 1, "Same Orient&ation", Command::ORIENTED_SAME, 'X', TN, mCon },
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{ 1, "Lock Point Where &Dragged", Command::WHERE_DRAGGED, ']', TN, mCon },
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{ 1, NULL, Command::NONE, 0, TN, NULL },
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{ 1, "Comment", Command::COMMENT, ';', TN, mCon },
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{ 0, "&Analyze", Command::NONE, 0, TN, NULL },
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{ 1, "Measure &Volume", Command::VOLUME, C|S|'V', TN, mAna },
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{ 1, "Measure A&rea", Command::AREA, C|S|'A', TN, mAna },
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{ 1, "Measure &Perimeter", Command::PERIMETER, C|S|'P', TN, mAna },
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{ 1, "Show &Interfering Parts", Command::INTERFERENCE, C|S|'I', TN, mAna },
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{ 1, "Show &Naked Edges", Command::NAKED_EDGES, C|S|'N', TN, mAna },
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{ 1, NULL, Command::NONE, 0, TN, NULL },
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{ 1, "Show Degrees of &Freedom", Command::SHOW_DOF, C|S|'F', TN, mAna },
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{ 1, NULL, Command::NONE, 0, TN, NULL },
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{ 1, "&Trace Point", Command::TRACE_PT, C|S|'T', TN, mAna },
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{ 1, "&Stop Tracing...", Command::STOP_TRACING, C|S|'S', TN, mAna },
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{ 1, "Step &Dimension...", Command::STEP_DIM, C|S|'D', TN, mAna },
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{ 0, "&Help", Command::NONE, 0, TN, NULL },
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{ 1, "&Website / Manual", Command::WEBSITE, 0, TN, mHelp },
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#ifndef __APPLE__
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{ 1, "&About", Command::ABOUT, 0, TN, mHelp },
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#endif
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{ -1, 0, Command::NONE, 0, TN, 0 }
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};
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#undef DEL
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#undef ESC
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#undef S
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#undef C
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#undef F
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#undef TN
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#undef TC
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#undef TR
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std::string SolveSpace::MakeAcceleratorLabel(int accel) {
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if(!accel) return "";
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std::string label;
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if(accel & GraphicsWindow::CTRL_MASK) {
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label += "Ctrl+";
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}
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if(accel & GraphicsWindow::SHIFT_MASK) {
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label += "Shift+";
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}
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if(accel >= GraphicsWindow::FUNCTION_KEY_BASE + 1 &&
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accel <= GraphicsWindow::FUNCTION_KEY_BASE + 12) {
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label += ssprintf("F%d", accel - GraphicsWindow::FUNCTION_KEY_BASE);
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} else if(accel == '\t') {
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label += "Tab";
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} else if(accel == ' ') {
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label += "Space";
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} else if(accel == GraphicsWindow::ESCAPE_KEY) {
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label += "Esc";
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} else if(accel == GraphicsWindow::DELETE_KEY) {
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label += "Del";
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} else {
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label += (char)(accel & 0xff);
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}
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return label;
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}
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void GraphicsWindow::Init() {
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scale = 5;
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offset = Vector::From(0, 0, 0);
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projRight = Vector::From(1, 0, 0);
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projUp = Vector::From(0, 1, 0);
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// Make sure those are valid; could get a mouse move without a mouse
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// down if someone depresses the button, then drags into our window.
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orig.projRight = projRight;
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orig.projUp = projUp;
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// And with the last group active
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activeGroup = SK.groupOrder.elem[SK.groupOrder.n - 1];
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SK.GetGroup(activeGroup)->Activate();
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showWorkplanes = false;
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showNormals = true;
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showPoints = true;
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showConstraints = true;
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showHdnLines = false;
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showShaded = true;
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showEdges = true;
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showMesh = false;
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showOutlines = false;
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showTextWindow = true;
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ShowTextWindow(showTextWindow);
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showSnapGrid = false;
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context.active = false;
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// Do this last, so that all the menus get updated correctly.
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ClearSuper();
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}
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void GraphicsWindow::AnimateOntoWorkplane() {
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if(!LockedInWorkplane()) return;
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Entity *w = SK.GetEntity(ActiveWorkplane());
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Quaternion quatf = w->Normal()->NormalGetNum();
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Vector offsetf = (SK.GetEntity(w->point[0])->PointGetNum()).ScaledBy(-1);
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AnimateOnto(quatf, offsetf);
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}
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void GraphicsWindow::AnimateOnto(Quaternion quatf, Vector offsetf) {
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// Get our initial orientation and translation.
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Quaternion quat0 = Quaternion::From(projRight, projUp);
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Vector offset0 = offset;
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// Make sure we take the shorter of the two possible paths.
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double mp = (quatf.Minus(quat0)).Magnitude();
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double mm = (quatf.Plus(quat0)).Magnitude();
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if(mp > mm) {
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quatf = quatf.ScaledBy(-1);
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mp = mm;
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}
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double mo = (offset0.Minus(offsetf)).Magnitude()*scale;
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// Animate transition, unless it's a tiny move.
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int32_t dt = (mp < 0.01 && mo < 10) ? (-20) :
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(int32_t)(100 + 1000*mp + 0.4*mo);
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// Don't ever animate for longer than 2000 ms; we can get absurdly
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// long translations (as measured in pixels) if the user zooms out, moves,
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// and then zooms in again.
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if(dt > 2000) dt = 2000;
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int64_t tn, t0 = GetMilliseconds();
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double s = 0;
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Quaternion dq = quatf.Times(quat0.Inverse());
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do {
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offset = (offset0.ScaledBy(1 - s)).Plus(offsetf.ScaledBy(s));
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Quaternion quat = (dq.ToThe(s)).Times(quat0);
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quat = quat.WithMagnitude(1);
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projRight = quat.RotationU();
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projUp = quat.RotationV();
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PaintGraphics();
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tn = GetMilliseconds();
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s = (tn - t0)/((double)dt);
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} while((tn - t0) < dt);
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projRight = quatf.RotationU();
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projUp = quatf.RotationV();
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offset = offsetf;
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InvalidateGraphics();
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// If the view screen is open, then we need to refresh it.
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SS.ScheduleShowTW();
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}
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void GraphicsWindow::HandlePointForZoomToFit(Vector p, Point2d *pmax, Point2d *pmin,
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double *wmin, bool usePerspective)
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{
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double w;
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Vector pp = ProjectPoint4(p, &w);
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// If usePerspective is true, then we calculate a perspective projection of the point.
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// If not, then we do a parallel projection regardless of the current
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// scale factor.
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if(usePerspective) {
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pp = pp.ScaledBy(1.0/w);
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}
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pmax->x = max(pmax->x, pp.x);
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pmax->y = max(pmax->y, pp.y);
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pmin->x = min(pmin->x, pp.x);
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pmin->y = min(pmin->y, pp.y);
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*wmin = min(*wmin, w);
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}
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void GraphicsWindow::LoopOverPoints(const std::vector<Entity *> &entities,
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const std::vector<Constraint *> &constraints,
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const std::vector<hEntity> &faces,
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Point2d *pmax, Point2d *pmin, double *wmin,
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bool usePerspective, bool includeMesh) {
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for(Entity *e : entities) {
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if(e->IsPoint()) {
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HandlePointForZoomToFit(e->PointGetNum(), pmax, pmin, wmin, usePerspective);
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} else if(e->type == Entity::Type::CIRCLE) {
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// Lots of entities can extend outside the bbox of their points,
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// but circles are particularly bad. We want to get things halfway
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// reasonable without the mesh, because a zoom to fit is used to
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// set the zoom level to set the chord tol.
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double r = e->CircleGetRadiusNum();
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Vector c = SK.GetEntity(e->point[0])->PointGetNum();
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Quaternion q = SK.GetEntity(e->normal)->NormalGetNum();
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for(int j = 0; j < 4; j++) {
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Vector p = (j == 0) ? (c.Plus(q.RotationU().ScaledBy( r))) :
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(j == 1) ? (c.Plus(q.RotationU().ScaledBy(-r))) :
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(j == 2) ? (c.Plus(q.RotationV().ScaledBy( r))) :
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(c.Plus(q.RotationV().ScaledBy(-r)));
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HandlePointForZoomToFit(p, pmax, pmin, wmin, usePerspective);
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}
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} else {
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// We have to iterate children points, because we can select entites without points
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for(int i = 0; i < MAX_POINTS_IN_ENTITY; i++) {
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if(e->point[i].v == 0) break;
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Vector p = SK.GetEntity(e->point[i])->PointGetNum();
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HandlePointForZoomToFit(p, pmax, pmin, wmin, usePerspective);
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}
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}
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}
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for(Constraint *c : constraints) {
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std::vector<Vector> refs;
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c->GetReferencePoints(GetCamera(), &refs);
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for(Vector p : refs) {
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HandlePointForZoomToFit(p, pmax, pmin, wmin, usePerspective);
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}
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}
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if(!includeMesh && faces.empty()) return;
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Group *g = SK.GetGroup(activeGroup);
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g->GenerateDisplayItems();
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for(int i = 0; i < g->displayMesh.l.n; i++) {
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STriangle *tr = &(g->displayMesh.l.elem[i]);
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if(!includeMesh) {
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bool found = false;
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for(const hEntity &face : faces) {
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if(face.v != tr->meta.face) continue;
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found = true;
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break;
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}
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if(!found) continue;
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}
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HandlePointForZoomToFit(tr->a, pmax, pmin, wmin, usePerspective);
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HandlePointForZoomToFit(tr->b, pmax, pmin, wmin, usePerspective);
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HandlePointForZoomToFit(tr->c, pmax, pmin, wmin, usePerspective);
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}
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if(!includeMesh) return;
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for(int i = 0; i < g->polyLoops.l.n; i++) {
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SContour *sc = &(g->polyLoops.l.elem[i]);
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for(int j = 0; j < sc->l.n; j++) {
|
|
HandlePointForZoomToFit(sc->l.elem[j].p, pmax, pmin, wmin, usePerspective);
|
|
}
|
|
}
|
|
}
|
|
void GraphicsWindow::ZoomToFit(bool includingInvisibles, bool useSelection) {
|
|
std::vector<Entity *> entities;
|
|
std::vector<Constraint *> constraints;
|
|
std::vector<hEntity> faces;
|
|
|
|
if(useSelection) {
|
|
for(int i = 0; i < selection.n; i++) {
|
|
Selection *s = &selection.elem[i];
|
|
if(s->entity.v != 0) {
|
|
Entity *e = SK.entity.FindById(s->entity);
|
|
if(e->IsFace()) {
|
|
faces.push_back(e->h);
|
|
continue;
|
|
}
|
|
entities.push_back(e);
|
|
}
|
|
if(s->constraint.v != 0) {
|
|
Constraint *c = SK.constraint.FindById(s->constraint);
|
|
constraints.push_back(c);
|
|
}
|
|
}
|
|
}
|
|
|
|
bool selectionUsed = !entities.empty() || !constraints.empty() || !faces.empty();
|
|
|
|
if(!selectionUsed) {
|
|
for(Entity &e : SK.entity) {
|
|
// we don't want to handle separate points, because we will iterate them inside entities.
|
|
if(e.IsPoint()) continue;
|
|
if(!includingInvisibles && !e.IsVisible()) continue;
|
|
entities.push_back(&e);
|
|
}
|
|
|
|
for(Constraint &c : SK.constraint) {
|
|
if(!c.IsVisible()) continue;
|
|
constraints.push_back(&c);
|
|
}
|
|
}
|
|
|
|
// On the first run, ignore perspective.
|
|
Point2d pmax = { -1e12, -1e12 }, pmin = { 1e12, 1e12 };
|
|
double wmin = 1;
|
|
LoopOverPoints(entities, constraints, faces, &pmax, &pmin, &wmin,
|
|
/*usePerspective=*/false, /*includeMesh=*/!selectionUsed);
|
|
|
|
double xm = (pmax.x + pmin.x)/2, ym = (pmax.y + pmin.y)/2;
|
|
double dx = pmax.x - pmin.x, dy = pmax.y - pmin.y;
|
|
|
|
offset = offset.Plus(projRight.ScaledBy(-xm)).Plus(
|
|
projUp. ScaledBy(-ym));
|
|
|
|
// And based on this, we calculate the scale and offset
|
|
if(EXACT(dx == 0 && dy == 0)) {
|
|
scale = 5;
|
|
} else {
|
|
double scalex = 1e12, scaley = 1e12;
|
|
if(EXACT(dx != 0)) scalex = 0.9*width /dx;
|
|
if(EXACT(dy != 0)) scaley = 0.9*height/dy;
|
|
scale = min(scalex, scaley);
|
|
|
|
scale = min(300.0, scale);
|
|
scale = max(0.003, scale);
|
|
}
|
|
|
|
// Then do another run, considering the perspective.
|
|
pmax.x = -1e12; pmax.y = -1e12;
|
|
pmin.x = 1e12; pmin.y = 1e12;
|
|
wmin = 1;
|
|
LoopOverPoints(entities, constraints, faces, &pmax, &pmin, &wmin,
|
|
/*usePerspective=*/true, /*includeMesh=*/!selectionUsed);
|
|
|
|
// Adjust the scale so that no points are behind the camera
|
|
if(wmin < 0.1) {
|
|
double k = SS.CameraTangent();
|
|
// w = 1+k*scale*z
|
|
double zmin = (wmin - 1)/(k*scale);
|
|
// 0.1 = 1 + k*scale*zmin
|
|
// (0.1 - 1)/(k*zmin) = scale
|
|
scale = min(scale, (0.1 - 1)/(k*zmin));
|
|
}
|
|
}
|
|
|
|
void GraphicsWindow::MenuView(Command id) {
|
|
switch(id) {
|
|
case Command::ZOOM_IN:
|
|
SS.GW.scale *= 1.2;
|
|
SS.ScheduleShowTW();
|
|
break;
|
|
|
|
case Command::ZOOM_OUT:
|
|
SS.GW.scale /= 1.2;
|
|
SS.ScheduleShowTW();
|
|
break;
|
|
|
|
case Command::ZOOM_TO_FIT:
|
|
SS.GW.ZoomToFit(/*includingInvisibles=*/false, /*useSelection=*/true);
|
|
SS.ScheduleShowTW();
|
|
break;
|
|
|
|
case Command::SHOW_GRID:
|
|
SS.GW.showSnapGrid = !SS.GW.showSnapGrid;
|
|
if(SS.GW.showSnapGrid && !SS.GW.LockedInWorkplane()) {
|
|
Message("No workplane is active, so the grid will not "
|
|
"appear.");
|
|
}
|
|
SS.GW.EnsureValidActives();
|
|
InvalidateGraphics();
|
|
break;
|
|
|
|
case Command::PERSPECTIVE_PROJ:
|
|
SS.usePerspectiveProj = !SS.usePerspectiveProj;
|
|
if(SS.cameraTangent < 1e-6) {
|
|
Error("The perspective factor is set to zero, so the view will "
|
|
"always be a parallel projection.\n\n"
|
|
"For a perspective projection, modify the perspective "
|
|
"factor in the configuration screen. A value around 0.3 "
|
|
"is typical.");
|
|
}
|
|
SS.GW.EnsureValidActives();
|
|
InvalidateGraphics();
|
|
break;
|
|
|
|
case Command::ONTO_WORKPLANE:
|
|
if(SS.GW.LockedInWorkplane()) {
|
|
SS.GW.AnimateOntoWorkplane();
|
|
SS.ScheduleShowTW();
|
|
break;
|
|
} // if not in 2d mode fall through and use ORTHO logic
|
|
case Command::NEAREST_ORTHO:
|
|
case Command::NEAREST_ISO: {
|
|
static const Vector ortho[3] = {
|
|
Vector::From(1, 0, 0),
|
|
Vector::From(0, 1, 0),
|
|
Vector::From(0, 0, 1)
|
|
};
|
|
double sqrt2 = sqrt(2.0), sqrt6 = sqrt(6.0);
|
|
Quaternion quat0 = Quaternion::From(SS.GW.projRight, SS.GW.projUp);
|
|
Quaternion quatf = quat0;
|
|
double dmin = 1e10;
|
|
|
|
// There are 24 possible views; 3*2*2*2
|
|
int i, j, negi, negj;
|
|
for(i = 0; i < 3; i++) {
|
|
for(j = 0; j < 3; j++) {
|
|
if(i == j) continue;
|
|
for(negi = 0; negi < 2; negi++) {
|
|
for(negj = 0; negj < 2; negj++) {
|
|
Vector ou = ortho[i], ov = ortho[j];
|
|
if(negi) ou = ou.ScaledBy(-1);
|
|
if(negj) ov = ov.ScaledBy(-1);
|
|
Vector on = ou.Cross(ov);
|
|
|
|
Vector u, v;
|
|
if(id == Command::NEAREST_ORTHO || id == Command::ONTO_WORKPLANE) {
|
|
u = ou;
|
|
v = ov;
|
|
} else {
|
|
u =
|
|
ou.ScaledBy(1/sqrt2).Plus(
|
|
on.ScaledBy(-1/sqrt2));
|
|
v =
|
|
ou.ScaledBy(-1/sqrt6).Plus(
|
|
ov.ScaledBy(2/sqrt6).Plus(
|
|
on.ScaledBy(-1/sqrt6)));
|
|
}
|
|
|
|
Quaternion quatt = Quaternion::From(u, v);
|
|
double d = min(
|
|
(quatt.Minus(quat0)).Magnitude(),
|
|
(quatt.Plus(quat0)).Magnitude());
|
|
if(d < dmin) {
|
|
dmin = d;
|
|
quatf = quatt;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
SS.GW.AnimateOnto(quatf, SS.GW.offset);
|
|
break;
|
|
}
|
|
|
|
case Command::CENTER_VIEW:
|
|
SS.GW.GroupSelection();
|
|
if(SS.GW.gs.n == 1 && SS.GW.gs.points == 1) {
|
|
Quaternion quat0;
|
|
// Offset is the selected point, quaternion is same as before
|
|
Vector pt = SK.GetEntity(SS.GW.gs.point[0])->PointGetNum();
|
|
quat0 = Quaternion::From(SS.GW.projRight, SS.GW.projUp);
|
|
SS.GW.AnimateOnto(quat0, pt.ScaledBy(-1));
|
|
SS.GW.ClearSelection();
|
|
} else {
|
|
Error("Select a point; this point will become the center "
|
|
"of the view on screen.");
|
|
}
|
|
break;
|
|
|
|
case Command::SHOW_MENU_BAR:
|
|
ToggleMenuBar();
|
|
SS.GW.EnsureValidActives();
|
|
InvalidateGraphics();
|
|
break;
|
|
|
|
case Command::SHOW_TOOLBAR:
|
|
SS.showToolbar = !SS.showToolbar;
|
|
SS.GW.EnsureValidActives();
|
|
InvalidateGraphics();
|
|
break;
|
|
|
|
case Command::SHOW_TEXT_WND:
|
|
SS.GW.showTextWindow = !SS.GW.showTextWindow;
|
|
SS.GW.EnsureValidActives();
|
|
break;
|
|
|
|
case Command::UNITS_INCHES:
|
|
SS.viewUnits = Unit::INCHES;
|
|
SS.ScheduleShowTW();
|
|
SS.GW.EnsureValidActives();
|
|
break;
|
|
|
|
case Command::UNITS_MM:
|
|
SS.viewUnits = Unit::MM;
|
|
SS.ScheduleShowTW();
|
|
SS.GW.EnsureValidActives();
|
|
break;
|
|
|
|
case Command::FULL_SCREEN:
|
|
ToggleFullScreen();
|
|
SS.GW.EnsureValidActives();
|
|
break;
|
|
|
|
default: ssassert(false, "Unexpected menu ID");
|
|
}
|
|
InvalidateGraphics();
|
|
}
|
|
|
|
void GraphicsWindow::EnsureValidActives() {
|
|
bool change = false;
|
|
// The active group must exist, and not be the references.
|
|
Group *g = SK.group.FindByIdNoOops(activeGroup);
|
|
if((!g) || (g->h.v == Group::HGROUP_REFERENCES.v)) {
|
|
int i;
|
|
for(i = 0; i < SK.groupOrder.n; i++) {
|
|
if(SK.groupOrder.elem[i].v != Group::HGROUP_REFERENCES.v) {
|
|
break;
|
|
}
|
|
}
|
|
if(i >= SK.groupOrder.n) {
|
|
// This can happen if the user deletes all the groups in the
|
|
// sketch. It's difficult to prevent that, because the last
|
|
// group might have been deleted automatically, because it failed
|
|
// a dependency. There needs to be something, so create a plane
|
|
// drawing group and activate that. They should never be able
|
|
// to delete the references, though.
|
|
activeGroup = SS.CreateDefaultDrawingGroup();
|
|
// We've created the default group, but not the workplane entity;
|
|
// do it now so that drawing mode isn't switched to "Free in 3d".
|
|
SS.GenerateAll(SolveSpaceUI::Generate::ALL);
|
|
} else {
|
|
activeGroup = SK.groupOrder.elem[i];
|
|
}
|
|
SK.GetGroup(activeGroup)->Activate();
|
|
change = true;
|
|
}
|
|
|
|
// The active coordinate system must also exist.
|
|
if(LockedInWorkplane()) {
|
|
Entity *e = SK.entity.FindByIdNoOops(ActiveWorkplane());
|
|
if(e) {
|
|
hGroup hgw = e->group;
|
|
if(hgw.v != activeGroup.v && SS.GroupsInOrder(activeGroup, hgw)) {
|
|
// The active workplane is in a group that comes after the
|
|
// active group; so any request or constraint will fail.
|
|
SetWorkplaneFreeIn3d();
|
|
change = true;
|
|
}
|
|
} else {
|
|
SetWorkplaneFreeIn3d();
|
|
change = true;
|
|
}
|
|
}
|
|
|
|
// And update the checked state for various menus
|
|
bool locked = LockedInWorkplane();
|
|
RadioMenuByCmd(Command::FREE_IN_3D, !locked);
|
|
RadioMenuByCmd(Command::SEL_WORKPLANE, locked);
|
|
|
|
SS.UndoEnableMenus();
|
|
|
|
switch(SS.viewUnits) {
|
|
case Unit::MM:
|
|
case Unit::INCHES:
|
|
break;
|
|
default:
|
|
SS.viewUnits = Unit::MM;
|
|
break;
|
|
}
|
|
RadioMenuByCmd(Command::UNITS_MM, SS.viewUnits == Unit::MM);
|
|
RadioMenuByCmd(Command::UNITS_INCHES, SS.viewUnits == Unit::INCHES);
|
|
|
|
ShowTextWindow(SS.GW.showTextWindow);
|
|
CheckMenuByCmd(Command::SHOW_TEXT_WND, /*checked=*/SS.GW.showTextWindow);
|
|
|
|
#if defined(__APPLE__)
|
|
CheckMenuByCmd(Command::SHOW_MENU_BAR, /*checked=*/MenuBarIsVisible());
|
|
#endif
|
|
CheckMenuByCmd(Command::SHOW_TOOLBAR, /*checked=*/SS.showToolbar);
|
|
CheckMenuByCmd(Command::PERSPECTIVE_PROJ, /*checked=*/SS.usePerspectiveProj);
|
|
CheckMenuByCmd(Command::SHOW_GRID,/*checked=*/SS.GW.showSnapGrid);
|
|
#if defined(HAVE_GTK) || defined(__APPLE__)
|
|
CheckMenuByCmd(Command::FULL_SCREEN, /*checked=*/FullScreenIsActive());
|
|
#endif
|
|
|
|
if(change) SS.ScheduleShowTW();
|
|
}
|
|
|
|
void GraphicsWindow::SetWorkplaneFreeIn3d() {
|
|
SK.GetGroup(activeGroup)->activeWorkplane = Entity::FREE_IN_3D;
|
|
}
|
|
hEntity GraphicsWindow::ActiveWorkplane() {
|
|
Group *g = SK.group.FindByIdNoOops(activeGroup);
|
|
if(g) {
|
|
return g->activeWorkplane;
|
|
} else {
|
|
return Entity::FREE_IN_3D;
|
|
}
|
|
}
|
|
bool GraphicsWindow::LockedInWorkplane() {
|
|
return (SS.GW.ActiveWorkplane().v != Entity::FREE_IN_3D.v);
|
|
}
|
|
|
|
void GraphicsWindow::ForceTextWindowShown() {
|
|
if(!showTextWindow) {
|
|
showTextWindow = true;
|
|
CheckMenuByCmd(Command::SHOW_TEXT_WND, /*checked=*/true);
|
|
ShowTextWindow(true);
|
|
}
|
|
}
|
|
|
|
void GraphicsWindow::DeleteTaggedRequests() {
|
|
// Rewrite any point-coincident constraints that were affected by this
|
|
// deletion.
|
|
Request *r;
|
|
for(r = SK.request.First(); r; r = SK.request.NextAfter(r)) {
|
|
if(!r->tag) continue;
|
|
FixConstraintsForRequestBeingDeleted(r->h);
|
|
}
|
|
// and then delete the tagged requests.
|
|
SK.request.RemoveTagged();
|
|
|
|
// An edit might be in progress for the just-deleted item. So
|
|
// now it's not.
|
|
HideGraphicsEditControl();
|
|
SS.TW.HideEditControl();
|
|
// And clear out the selection, which could contain that item.
|
|
ClearSuper();
|
|
// And regenerate to get rid of what it generates, plus anything
|
|
// that references it (since the regen code checks for that).
|
|
SS.GenerateAll(SolveSpaceUI::Generate::ALL);
|
|
EnsureValidActives();
|
|
SS.ScheduleShowTW();
|
|
}
|
|
|
|
Vector GraphicsWindow::SnapToGrid(Vector p) {
|
|
if(!LockedInWorkplane()) return p;
|
|
|
|
EntityBase *wrkpl = SK.GetEntity(ActiveWorkplane()),
|
|
*norm = wrkpl->Normal();
|
|
Vector wo = SK.GetEntity(wrkpl->point[0])->PointGetNum(),
|
|
wu = norm->NormalU(),
|
|
wv = norm->NormalV(),
|
|
wn = norm->NormalN();
|
|
|
|
Vector pp = (p.Minus(wo)).DotInToCsys(wu, wv, wn);
|
|
pp.x = floor((pp.x / SS.gridSpacing) + 0.5)*SS.gridSpacing;
|
|
pp.y = floor((pp.y / SS.gridSpacing) + 0.5)*SS.gridSpacing;
|
|
pp.z = 0;
|
|
|
|
return pp.ScaleOutOfCsys(wu, wv, wn).Plus(wo);
|
|
}
|
|
|
|
void GraphicsWindow::MenuEdit(Command id) {
|
|
switch(id) {
|
|
case Command::UNSELECT_ALL:
|
|
SS.GW.GroupSelection();
|
|
// If there's nothing selected to de-select, and no operation
|
|
// to cancel, then perhaps they want to return to the home
|
|
// screen in the text window.
|
|
if(SS.GW.gs.n == 0 &&
|
|
SS.GW.gs.constraints == 0 &&
|
|
SS.GW.pending.operation == Pending::NONE)
|
|
{
|
|
if(!(TextEditControlIsVisible() ||
|
|
GraphicsEditControlIsVisible()))
|
|
{
|
|
if(SS.TW.shown.screen == TextWindow::Screen::STYLE_INFO) {
|
|
SS.TW.GoToScreen(TextWindow::Screen::LIST_OF_STYLES);
|
|
} else {
|
|
SS.TW.ClearSuper();
|
|
}
|
|
}
|
|
}
|
|
SS.GW.ClearSuper();
|
|
SS.TW.HideEditControl();
|
|
SS.nakedEdges.Clear();
|
|
SS.justExportedInfo.draw = false;
|
|
// This clears the marks drawn to indicate which points are
|
|
// still free to drag.
|
|
Param *p;
|
|
for(p = SK.param.First(); p; p = SK.param.NextAfter(p)) {
|
|
p->free = false;
|
|
}
|
|
if(SS.exportMode) {
|
|
SS.exportMode = false;
|
|
SS.GenerateAll(SolveSpaceUI::Generate::ALL);
|
|
}
|
|
break;
|
|
|
|
case Command::SELECT_ALL: {
|
|
Entity *e;
|
|
for(e = SK.entity.First(); e; e = SK.entity.NextAfter(e)) {
|
|
if(e->group.v != SS.GW.activeGroup.v) continue;
|
|
if(e->IsFace() || e->IsDistance()) continue;
|
|
if(!e->IsVisible()) continue;
|
|
|
|
SS.GW.MakeSelected(e->h);
|
|
}
|
|
InvalidateGraphics();
|
|
SS.ScheduleShowTW();
|
|
break;
|
|
}
|
|
|
|
case Command::SELECT_CHAIN: {
|
|
Entity *e;
|
|
int newlySelected = 0;
|
|
bool didSomething;
|
|
do {
|
|
didSomething = false;
|
|
for(e = SK.entity.First(); e; e = SK.entity.NextAfter(e)) {
|
|
if(e->group.v != SS.GW.activeGroup.v) continue;
|
|
if(!e->HasEndpoints()) continue;
|
|
if(!e->IsVisible()) continue;
|
|
|
|
Vector st = e->EndpointStart(),
|
|
fi = e->EndpointFinish();
|
|
|
|
bool onChain = false, alreadySelected = false;
|
|
List<Selection> *ls = &(SS.GW.selection);
|
|
for(Selection *s = ls->First(); s; s = ls->NextAfter(s)) {
|
|
if(!s->entity.v) continue;
|
|
if(s->entity.v == e->h.v) {
|
|
alreadySelected = true;
|
|
continue;
|
|
}
|
|
Entity *se = SK.GetEntity(s->entity);
|
|
if(!se->HasEndpoints()) continue;
|
|
|
|
Vector sst = se->EndpointStart(),
|
|
sfi = se->EndpointFinish();
|
|
|
|
if(sst.Equals(st) || sst.Equals(fi) ||
|
|
sfi.Equals(st) || sfi.Equals(fi))
|
|
{
|
|
onChain = true;
|
|
}
|
|
}
|
|
if(onChain && !alreadySelected) {
|
|
SS.GW.MakeSelected(e->h);
|
|
newlySelected++;
|
|
didSomething = true;
|
|
}
|
|
}
|
|
} while(didSomething);
|
|
if(newlySelected == 0) {
|
|
Error("No additional entities share endpoints with the "
|
|
"selected entities.");
|
|
}
|
|
InvalidateGraphics();
|
|
SS.ScheduleShowTW();
|
|
break;
|
|
}
|
|
|
|
case Command::ROTATE_90: {
|
|
SS.GW.GroupSelection();
|
|
Entity *e = NULL;
|
|
if(SS.GW.gs.n == 1 && SS.GW.gs.points == 1) {
|
|
e = SK.GetEntity(SS.GW.gs.point[0]);
|
|
} else if(SS.GW.gs.n == 1 && SS.GW.gs.entities == 1) {
|
|
e = SK.GetEntity(SS.GW.gs.entity[0]);
|
|
}
|
|
SS.GW.ClearSelection();
|
|
|
|
hGroup hg = e ? e->group : SS.GW.activeGroup;
|
|
Group *g = SK.GetGroup(hg);
|
|
if(g->type != Group::Type::LINKED) {
|
|
Error("To use this command, select a point or other "
|
|
"entity from an linked part, or make a link "
|
|
"group the active group.");
|
|
break;
|
|
}
|
|
|
|
|
|
SS.UndoRemember();
|
|
// Rotate by ninety degrees about the coordinate axis closest
|
|
// to the screen normal.
|
|
Vector norm = SS.GW.projRight.Cross(SS.GW.projUp);
|
|
norm = norm.ClosestOrtho();
|
|
norm = norm.WithMagnitude(1);
|
|
Quaternion qaa = Quaternion::From(norm, PI/2);
|
|
|
|
g->TransformImportedBy(Vector::From(0, 0, 0), qaa);
|
|
|
|
// and regenerate as necessary.
|
|
SS.MarkGroupDirty(hg);
|
|
SS.GenerateAll();
|
|
break;
|
|
}
|
|
|
|
case Command::SNAP_TO_GRID: {
|
|
if(!SS.GW.LockedInWorkplane()) {
|
|
Error("No workplane is active. Select a workplane to define "
|
|
"the plane for the snap grid.");
|
|
break;
|
|
}
|
|
SS.GW.GroupSelection();
|
|
if(SS.GW.gs.points == 0 && SS.GW.gs.constraintLabels == 0) {
|
|
Error("Can't snap these items to grid; select points, "
|
|
"text comments, or constraints with a label. "
|
|
"To snap a line, select its endpoints.");
|
|
break;
|
|
}
|
|
SS.UndoRemember();
|
|
|
|
List<Selection> *ls = &(SS.GW.selection);
|
|
for(Selection *s = ls->First(); s; s = ls->NextAfter(s)) {
|
|
if(s->entity.v) {
|
|
hEntity hp = s->entity;
|
|
Entity *ep = SK.GetEntity(hp);
|
|
if(!ep->IsPoint()) continue;
|
|
|
|
Vector p = ep->PointGetNum();
|
|
ep->PointForceTo(SS.GW.SnapToGrid(p));
|
|
SS.GW.pending.points.Add(&hp);
|
|
SS.MarkGroupDirty(ep->group);
|
|
} else if(s->constraint.v) {
|
|
Constraint *c = SK.GetConstraint(s->constraint);
|
|
std::vector<Vector> refs;
|
|
c->GetReferencePoints(SS.GW.GetCamera(), &refs);
|
|
c->disp.offset = c->disp.offset.Plus(SS.GW.SnapToGrid(refs[0]).Minus(refs[0]));
|
|
}
|
|
}
|
|
// Regenerate, with these points marked as dragged so that they
|
|
// get placed as close as possible to our snap grid.
|
|
SS.GenerateAll();
|
|
SS.GW.ClearPending();
|
|
|
|
SS.GW.ClearSelection();
|
|
InvalidateGraphics();
|
|
break;
|
|
}
|
|
|
|
case Command::UNDO:
|
|
SS.UndoUndo();
|
|
break;
|
|
|
|
case Command::REDO:
|
|
SS.UndoRedo();
|
|
break;
|
|
|
|
case Command::REGEN_ALL:
|
|
SS.ReloadAllImported();
|
|
SS.GenerateAll(SolveSpaceUI::Generate::UNTIL_ACTIVE);
|
|
SS.ScheduleShowTW();
|
|
break;
|
|
|
|
default: ssassert(false, "Unexpected menu ID");
|
|
}
|
|
}
|
|
|
|
void GraphicsWindow::MenuRequest(Command id) {
|
|
const char *s;
|
|
switch(id) {
|
|
case Command::SEL_WORKPLANE: {
|
|
SS.GW.GroupSelection();
|
|
Group *g = SK.GetGroup(SS.GW.activeGroup);
|
|
|
|
if(SS.GW.gs.n == 1 && SS.GW.gs.workplanes == 1) {
|
|
// A user-selected workplane
|
|
g->activeWorkplane = SS.GW.gs.entity[0];
|
|
} else if(g->type == Group::Type::DRAWING_WORKPLANE) {
|
|
// The group's default workplane
|
|
g->activeWorkplane = g->h.entity(0);
|
|
Message("No workplane selected. Activating default workplane "
|
|
"for this group.");
|
|
}
|
|
|
|
if(!SS.GW.LockedInWorkplane()) {
|
|
Error("No workplane is selected, and the active group does "
|
|
"not have a default workplane. Try selecting a "
|
|
"workplane, or activating a sketch-in-new-workplane "
|
|
"group.");
|
|
break;
|
|
}
|
|
// Align the view with the selected workplane
|
|
SS.GW.AnimateOntoWorkplane();
|
|
SS.GW.ClearSuper();
|
|
SS.ScheduleShowTW();
|
|
break;
|
|
}
|
|
case Command::FREE_IN_3D:
|
|
SS.GW.SetWorkplaneFreeIn3d();
|
|
SS.GW.EnsureValidActives();
|
|
SS.ScheduleShowTW();
|
|
InvalidateGraphics();
|
|
break;
|
|
|
|
case Command::TANGENT_ARC:
|
|
SS.GW.GroupSelection();
|
|
if(SS.GW.gs.n == 1 && SS.GW.gs.points == 1) {
|
|
SS.GW.MakeTangentArc();
|
|
} else if(SS.GW.gs.n != 0) {
|
|
Error("Bad selection for tangent arc at point. Select a "
|
|
"single point, or select nothing to set up arc "
|
|
"parameters.");
|
|
} else {
|
|
SS.TW.GoToScreen(TextWindow::Screen::TANGENT_ARC);
|
|
SS.GW.ForceTextWindowShown();
|
|
SS.ScheduleShowTW();
|
|
InvalidateGraphics(); // repaint toolbar
|
|
}
|
|
break;
|
|
|
|
case Command::ARC: s = "click point on arc (draws anti-clockwise)"; goto c;
|
|
case Command::DATUM_POINT: s = "click to place datum point"; goto c;
|
|
case Command::LINE_SEGMENT: s = "click first point of line segment"; goto c;
|
|
case Command::CONSTR_SEGMENT: s = "click first point of construction line segment"; goto c;
|
|
case Command::CUBIC: s = "click first point of cubic segment"; goto c;
|
|
case Command::CIRCLE: s = "click center of circle"; goto c;
|
|
case Command::WORKPLANE: s = "click origin of workplane"; goto c;
|
|
case Command::RECTANGLE: s = "click one corner of rectangle"; goto c;
|
|
case Command::TTF_TEXT: s = "click top left of text"; goto c;
|
|
c:
|
|
SS.GW.pending.operation = GraphicsWindow::Pending::COMMAND;
|
|
SS.GW.pending.command = id;
|
|
SS.GW.pending.description = s;
|
|
SS.ScheduleShowTW();
|
|
InvalidateGraphics(); // repaint toolbar
|
|
break;
|
|
|
|
case Command::CONSTRUCTION: {
|
|
SS.UndoRemember();
|
|
SS.GW.GroupSelection();
|
|
if(SS.GW.gs.entities == 0) {
|
|
Error("No entities are selected. Select entities before "
|
|
"trying to toggle their construction state.");
|
|
}
|
|
int i;
|
|
for(i = 0; i < SS.GW.gs.entities; i++) {
|
|
hEntity he = SS.GW.gs.entity[i];
|
|
if(!he.isFromRequest()) continue;
|
|
Request *r = SK.GetRequest(he.request());
|
|
r->construction = !(r->construction);
|
|
SS.MarkGroupDirty(r->group);
|
|
}
|
|
SS.GW.ClearSelection();
|
|
SS.GenerateAll();
|
|
break;
|
|
}
|
|
|
|
case Command::SPLIT_CURVES:
|
|
SS.GW.SplitLinesOrCurves();
|
|
break;
|
|
|
|
default: ssassert(false, "Unexpected menu ID");
|
|
}
|
|
}
|
|
|
|
void GraphicsWindow::ClearSuper() {
|
|
HideGraphicsEditControl();
|
|
ClearPending();
|
|
ClearSelection();
|
|
hover.Clear();
|
|
EnsureValidActives();
|
|
}
|
|
|
|
void GraphicsWindow::ToggleBool(bool *v) {
|
|
*v = !*v;
|
|
|
|
// The faces are shown as special stippling on the shaded triangle mesh,
|
|
// so not meaningful to show them and hide the shaded.
|
|
if(!showShaded) showFaces = false;
|
|
|
|
// We might need to regenerate the mesh and edge list, since the edges
|
|
// wouldn't have been generated if they were previously hidden.
|
|
if(showEdges) (SK.GetGroup(activeGroup))->displayDirty = true;
|
|
|
|
SS.GenerateAll();
|
|
InvalidateGraphics();
|
|
SS.ScheduleShowTW();
|
|
}
|
|
|
|
bool GraphicsWindow::SuggestLineConstraint(hRequest request, Constraint::Type *type) {
|
|
if(LockedInWorkplane()) {
|
|
Entity *ptA = SK.GetEntity(request.entity(1)),
|
|
*ptB = SK.GetEntity(request.entity(2));
|
|
|
|
Expr *au, *av, *bu, *bv;
|
|
|
|
ptA->PointGetExprsInWorkplane(ActiveWorkplane(), &au, &av);
|
|
ptB->PointGetExprsInWorkplane(ActiveWorkplane(), &bu, &bv);
|
|
|
|
double du = au->Minus(bu)->Eval();
|
|
double dv = av->Minus(bv)->Eval();
|
|
|
|
const double TOLERANCE_RATIO = 0.02;
|
|
if(fabs(dv) > LENGTH_EPS && fabs(du / dv) < TOLERANCE_RATIO) {
|
|
*type = Constraint::Type::VERTICAL;
|
|
return true;
|
|
} else if(fabs(du) > LENGTH_EPS && fabs(dv / du) < TOLERANCE_RATIO) {
|
|
*type = Constraint::Type::HORIZONTAL;
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|