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DrawGeomHatch improvements

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-draw & align dash patterns correctly on all QPainters using QGPathItem
-Allow patterns to start with space
-ensure horiz & vert lines pass through pattern origin
-Scalable complex patterns
This commit is contained in:
WandererFan
2017-03-27 21:10:33 -04:00
committed by wmayer
parent ae269dfc28
commit 76280891a1
5 changed files with 443 additions and 96 deletions
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42
src/Mod/TechDraw/App/DrawGeomHatch.cpp
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@@ -289,7 +289,7 @@ std::vector<TopoDS_Edge> DrawGeomHatch::makeEdgeOverlay(PATLineSpec hl, Bnd_Box
Base::Vector3d start;
Base::Vector3d end;
Base::Vector3d origin = hl.getOrigin();
double interval = hl.getInterval() * scale;
double interval = hl.getIntervalX() * scale;
double angle = hl.getAngle();
//only dealing with angles -180:180 for now
@@ -301,29 +301,33 @@ std::vector<TopoDS_Edge> DrawGeomHatch::makeEdgeOverlay(PATLineSpec hl, Bnd_Box
double slope = hl.getSlope();
if (angle == 0.0) { //odd case 1: horizontal lines
double y = origin.y;
int repeatUp = (int) ceil(((maxY - y)/interval) + 1);
int repeatDown = (int) ceil(((y - minY)/interval) + 1);
int repeatTotal = repeatUp + repeatDown;
interval = hl.getInterval() * scale;
double atomY = origin.y;
int repeatUp = (int) fabs((maxY - atomY)/interval);
int repeatDown = (int) fabs(((atomY - minY)/interval));
int repeatTotal = repeatUp + repeatDown + 1;
double yStart = atomY - repeatDown * interval;
// make repeats
for (int i = 0; i < repeatTotal; i++) {
Base::Vector3d newStart(minX,minY + float(i)*interval,0);
Base::Vector3d newEnd(maxX,minY + float(i)*interval,0);
Base::Vector3d newStart(minX,yStart + float(i)*interval,0);
Base::Vector3d newEnd(maxX,yStart + float(i)*interval,0);
TopoDS_Edge newLine = makeLine(newStart,newEnd);
result.push_back(newLine);
}
} else if ((angle == 90.0) ||
(angle == -90.0)) { //odd case 2: vertical lines
double x = origin.x;
int repeatRight = (int) ceil(((maxX - x)/interval) + 1);
int repeatLeft = (int) ceil(((x - minX)/interval) + 1);
int repeatTotal = repeatRight + repeatLeft;
interval = hl.getInterval() * scale;
double atomX = origin.x;
int repeatRight = (int) fabs((maxX - atomX)/interval);
int repeatLeft = (int) fabs((atomX - minX)/interval);
int repeatTotal = repeatRight + repeatLeft + 1;
double xStart = atomX - repeatLeft * interval;
// make repeats
for (int i = 0; i < repeatTotal; i++) {
Base::Vector3d newStart(minX + float(i)*interval,minY,0);
Base::Vector3d newEnd(minX + float(i)*interval,maxY,0);
Base::Vector3d newStart(xStart + float(i)*interval,minY,0);
Base::Vector3d newEnd(xStart + float(i)*interval,maxY,0);
TopoDS_Edge newLine = makeLine(newStart,newEnd);
result.push_back(newLine);
}
@@ -334,12 +338,12 @@ std::vector<TopoDS_Edge> DrawGeomHatch::makeEdgeOverlay(PATLineSpec hl, Bnd_Box
double xLeftAtom = origin.x + (minY - origin.y)/slope; //the "atom" is the fill line that passes through the
//pattern-origin (not necc. R2 origin)
double xRightAtom = origin.x + (maxY - origin.y)/slope;
int repeatRight = (int) ceil(((maxX - xLeftAtom)/interval) + 1);
int repeatLeft = (int) ceil(((xRightAtom - minX)/interval) + 1);
int repeatRight = (int) fabs((maxX - xLeftAtom)/interval);
int repeatLeft = (int) fabs((xRightAtom - minX)/interval);
double leftStartX = xLeftAtom - (repeatLeft * interval);
double leftEndX = xRightAtom - (repeatLeft * interval);
int repeatTotal = repeatRight + repeatLeft;
int repeatTotal = repeatRight + repeatLeft + 1;
//make repeats
for (int i = 0; i < repeatTotal; i++) {
@@ -353,11 +357,11 @@ std::vector<TopoDS_Edge> DrawGeomHatch::makeEdgeOverlay(PATLineSpec hl, Bnd_Box
// Base::Console().Message("TRACE - DGH-makeEdgeOverlay - making angle < 0\n");
double xRightAtom = origin.x + ((minY - origin.y)/slope); //x-coord of left end of Atom line
double xLeftAtom = origin.x + ((maxY - origin.y)/slope); //x-coord of right end of Atom line
int repeatRight = (int) ceil(((maxX - xLeftAtom)/interval) + 1); //number of lines to Right of Atom
int repeatLeft = (int) ceil(((xRightAtom - minX)/interval) + 1);//number of lines to Left of Atom
int repeatRight = (int) fabs((maxX - xLeftAtom)/interval); //number of lines to Right of Atom
int repeatLeft = (int) fabs((xRightAtom - minX)/interval); //number of lines to Left of Atom
double leftEndX = xLeftAtom - (repeatLeft * interval);
double leftStartX = xRightAtom - (repeatLeft * interval);
int repeatTotal = repeatRight + repeatLeft;
int repeatTotal = repeatRight + repeatLeft + 1;
// make repeats
for (int i = 0; i < repeatTotal; i++) {