C++ (Cpp) Stroke Examples

Example #1

0

Show file

File: DrawOp.cpp Project: ultimatepp/mirror

void Painter::DrawLineStroke(int width, Color color)
{
	if(IsNull(width) || IsNull(color))
		return;
	Begin();
	LineCap(LINECAP_ROUND);
	switch(width) {
		case PEN_NULL:
			Stroke(0, color);
			End();
			return;
		case PEN_SOLID:
			Stroke(1, color);
			break;
		case PEN_DASH:
			Dash("18 6");
			break;
		case PEN_DOT:
			Dash("3 3");
			break;
		case PEN_DASHDOT:
			Dash("9 6 3 6");
			break;
		case PEN_DASHDOTDOT:
			Dash("9 3 3 3 3 3");
			break;
	default:
		Stroke(width == 0 ? 1 : width, color);
		End();
		return;
	}
	Stroke(1, color);
	End();
}

Example #2

0

Show file

File: shapedemo.c Project: chengjianwen/openvg

// fontrange shows a range of fonts
void fontrange(int w, int h) {
	int *s, sizes[] = { 6, 7, 8, 9, 10, 11, 12, 14, 16, 18, 21, 24, 36, 48, 60, 72, 96, 0 };
	VGfloat x, y = h / 2, spacing = 50, s2 = spacing / 2, len, lx;
	char num[4];

	Start(w, h);
	Background(255, 255, 255);

	// compute the length so we can center
	for (len = 0, s = sizes; *s; s++) {
		len += *s + spacing;
	}
	len -= spacing;
	lx = (w / 2) - (len / 2);			   // center point

	// for each size, display a character and label
	for (x = lx, s = sizes; *s; s++) {
		Fill(128, 0, 0, 1);
		TextMid(x, y, "a", *s);
		Fill(128, 128, 128, 1);
		snprintf(num, 3, "%d", *s);
		TextMid(x, y - spacing, num, 16);
		x += *s + spacing;
	}
	// draw a line below the characters, a curve above
	x -= spacing;
	Stroke(150, 150, 150, 0.5);
	StrokeWidth(2);
	Line(lx, y - s2, x, y - s2);
	Fill(255, 255, 255, 1);
	Qbezier(lx, y + s2, x, y + s2, x, y + (spacing * 3));
	End();
}

Example #3

0

Show file

File: Painter.cpp Project: dreamsxin/ultimatepp

void Painter::DrawEllipseOp(const Rect& r, Color color, int pen, Color pencolor)
{
	Sizef sz = r.GetSize();
	Ellipse(r.left + sz.cx / 2, r.top + sz.cy / 2, sz.cx / 2, sz.cy / 2);
	Fill(color);
	Stroke(max(pen, 0), pencolor);
}

Example #4

0

Show file

File: Painter.cpp Project: dreamsxin/ultimatepp

void Painter::DrawLineOp(int x1, int y1, int x2, int y2, int width, Color color)
{
	double h = width / 2;
	Move(x1 + h, y1 + h);
	Line(x2 + h, y2 + h);
	Stroke(max(width, 0), color);
}

Example #5

0

Show file

File: screenDisplay.c Project: Feyre/345Final

void drawLine(int width, int height) {
	VGfloat shapecolor[4];
	RGB(202, 225, 255, shapecolor);
	
	VGfloat dotsize = 20;	
	setfill(shapecolor);

	double angle = getAngle(width, height);

	double hyp1 = height/1.3;	// inner radius
	double hyp2 = height/2;	// outer radius

	VGfloat x1, y1, x2, y2;
	x1 = hyp1 * cos(angle);
	y1 = hyp1 * sin(angle);
	x2 = hyp2 * cos(angle);
	y2 = hyp2 * sin(angle);


	StrokeWidth(5);
	Stroke(43, 43, 43, 1);
	Line(x1, y1, x2, y2);
	coordpoint(x2, y2, dotsize, shapecolor);

}

Example #6

0

Show file

File: shapedemo.c Project: chengjianwen/openvg

// rshapes draws shapes with random colors, strokes, and sizes. 
void rshapes(int width, int height, int n) {
	int i, j, np = 10;
	VGfloat sx, sy, cx, cy, px, py, ex, ey, pox, poy;
	VGfloat polyx[np], polyy[np];
	rseed();
	Start(width, height);
	for (i = 0; i < n; i++) {
		Fill(randcolor(), randcolor(), randcolor(), drand48());
		Ellipse(randf(width), randf(height), randf(200), randf(100));
		Circle(randf(width), randf(height), randf(100));
		Rect(randf(width), randf(height), randf(200), randf(100));
		Arc(randf(width), randf(height), randf(200), randf(200), randf(360), randf(360));

		sx = randf(width);
		sy = randf(height);
		Stroke(randcolor(), randcolor(), randcolor(), 1);
		StrokeWidth(randf(5));
		Line(sx, sy, sx + randf(200), sy + randf(100));
		StrokeWidth(0);

		sx = randf(width);
		sy = randf(height);
		ex = sx + randf(200);
		ey = sy;
		cx = sx + ((ex - sx) / 2.0);
		cy = sy + randf(100);
		Qbezier(sx, sy, cx, cy, ex, ey);

		sx = randf(width);
		sy = randf(height);
		ex = sx + randf(200);
		ey = sy;
		cx = sx + ((ex - sx) / 2.0);
		cy = sy + randf(100);
		px = cx;
		py = sy - randf(100);
		Cbezier(sx, sy, cx, cy, px, py, ex, ey);

		pox = randf(width);
		poy = randf(height);
		for (j = 0; j < np; j++) {
			polyx[j] = pox + randf(200);
			polyy[j] = poy + randf(100);
		}
		Polygon(polyx, polyy, np);

		pox = randf(width);
		poy = randf(height);
		for (j = 0; j < np; j++) {
			polyx[j] = pox + randf(200);
			polyy[j] = poy + randf(100);
		}
		Polyline(polyx, polyy, np);
	}
	Fill(128, 0, 0, 1);
	Text(20, 20, "OpenVG on the Raspberry Pi", 32);
	End();
}

Example #7

0

Show file

File: ColorSeparation.cpp Project: momentchan/VisualFeedback

void FindDrawPoints(int y, int x, int ys, int xe, Mat fill_region, ofstream & outputFile, float size, Vec3b rgb, Vec4f cmyk, int lineWidth, StrokeCluster &cluster){
	vector<Point> points;
	bool cross = true;

	//Find draw points
	while (y > ys && x < xe){		// Not touch boundary
		{
			if ((int)fill_region.at<uchar>(y, x) > 128 && !cross){
				points.push_back(Point(x - 1, y + 1));
				cross = true;
			}
			else if ((int)fill_region.at<uchar>(y, x) < 128 && cross){
				points.push_back(Point(x, y));
				cross = false;
			}
		}
		y = y - 1;
		x = x + 1;
	}
	if (points.size() % 2 != 0)  // add the boundary point
		points.push_back(Point(x, y));

	
	//Draw points
	int num = points.size() / 2;
	if (num > 0)
	if (!turn){
		for (int i = 0; i < num; i++)
		{
			cluster.addStroke(Stroke(rgb, cmyk, points[2 * i], points[2 * i + 1], lineWidth));
			outputFile << points[2 * i].x << " " << points[2 * i].y << " " << points[2 * i + 1].x << " " << points[2 * i + 1].y << endl;
			fillLines++;
		}
	}
	else {
		for (int i = num - 1; i >= 0; i--)
		if (norm(points[2 * i] - points[2 * i + 1]) > size*0.05)
		{
			cluster.addStroke(Stroke(rgb, cmyk, points[2 * i + 1], points[2 * i], lineWidth));
			outputFile << points[2 * i + 1].x << " " << points[2 * i + 1].y << " " << points[2 * i].x << " " << points[2 * i].y << endl;
			fillLines++;
		}
	}
	turn = !turn;
}

Example #8

0

Show file

// virtual
void Polyline::OnRender(Graphics* pGraphics)
{
	PointCollection* points = get_Points();

	if (points)
	{
		unsigned int count = points->GetCount();
		if (count > 0)
		{
			__release<LDraw::GraphicsPathF> path = new LDraw::GraphicsPathF;

			Point point = points->get_Item(0);
			path->AddMove(point.X, point.Y);

			for (unsigned int i = 1; i < count; i++)
			{
				point = points->get_Item(i);
				path->AddLine(point.X, point.Y);
			}

			Brush* Fill = get_Fill();
			if (Fill)
			{
				__release<LDraw::Brush> brush = Fill->CreateBrush(this, 1, 1);
				if (brush != NULL)
				{
					pGraphics->FillPath(brush, path);
				}
			}

#if 0
			double StrokeThickness;
			if (m_StrokeThickness)
				m_StrokeThickness->get_Value(&StrokeThickness);
			else
				StrokeThickness = 1;

			if (StrokeThickness > 0)
			{
				CComQIPtr<CLXUIElementImplImpl> Stroke(m_Stroke);
				if (Stroke)
				{
					Gdiplus::Brush* pBrush = Stroke->CreateBrush(this, 1, 1);
					if (pBrush)
					{
						Gdiplus::Pen pen(pBrush, StrokeThickness);

						pGraphics->DrawPath(pen, &path);
						delete pBrush;
					}
				}
			}
#endif
		}

	}
}

Example #9

0

Show file

File: shapedemo.c Project: chengjianwen/openvg

// grid draws a grid
void grid(VGfloat x, VGfloat y, int n, int w, int h) {
	VGfloat ix, iy;
	Stroke(128, 128, 128, 0.5);
	StrokeWidth(2);
	for (ix = x; ix <= x + w; ix += n) {
		Line(ix, y, ix, y + h);
	}

	for (iy = y; iy <= y + h; iy += n) {
		Line(x, iy, x + w, iy);
	}
}

Example #10

0

Show file