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example: ++bounding box

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Hermet Park 2025-03-19 17:29:37 +09:00 • committed by Hermet Park
parent 333e65ef7a
commit f01a9681ca
1 changed files with 140 additions and 35 deletions
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175
examples/BoundingBox.cpp
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@ -30,19 +30,41 @@ struct UserExample : tvgexam::Example
{ {
void bbox(tvg::Canvas* canvas, tvg::Paint* paint) void bbox(tvg::Canvas* canvas, tvg::Paint* paint)
{ {
tvg::Point pts[4]; //aabb
paint->bounds(pts); {
float x, y, w, h;
paint->bounds(&x, &y, &w, &h);
auto bound = tvg::Shape::gen(); auto bound = tvg::Shape::gen();
bound->moveTo(pts[0].x, pts[0].y); bound->moveTo(x, y);
bound->lineTo(pts[1].x, pts[1].y); bound->lineTo(x + w, y);
bound->lineTo(pts[2].x, pts[2].y); bound->lineTo(x + w, y + h);
bound->lineTo(pts[3].x, pts[3].y); bound->lineTo(x, y + h);
bound->close(); bound->close();
bound->strokeWidth(2.0f); bound->strokeWidth(2.0f);
bound->strokeFill(255, 255, 0); bound->strokeFill(255, 0, 0, 255);
canvas->push(bound); canvas->push(bound);
}
//obb
{
tvg::Point pts[4];
paint->bounds(pts);
auto bound = tvg::Shape::gen();
bound->moveTo(pts[0].x, pts[0].y);
bound->lineTo(pts[1].x, pts[1].y);
bound->lineTo(pts[2].x, pts[2].y);
bound->lineTo(pts[3].x, pts[3].y);
bound->close();
bound->strokeWidth(2.0f);
float dash[] = {3.0f, 10.0f};
bound->strokeDash(dash, 2);
bound->strokeFill(255, 255, 255, 255);
canvas->push(bound);
}
} }
bool content(tvg::Canvas* canvas, uint32_t w, uint32_t h) override bool content(tvg::Canvas* canvas, uint32_t w, uint32_t h) override
@ -58,16 +80,20 @@ struct UserExample : tvgexam::Example
} }
{ {
auto shape = tvg::Shape::gen(); if (!tvgexam::verify(tvg::Text::load(EXAMPLE_DIR"/font/Arial.ttf"))) return false;
shape->appendRect(120, 70, 100, 20); auto text = tvg::Text::gen();
shape->fill(100, 250, 155); text->font("Arial", 30);
canvas->push(shape); text->text("Text Test");
bbox(canvas, shape); text->fill(255, 255, 0);
text->translate(100, 20);
text->rotate(16.0f);
canvas->push(text);
bbox(canvas, text);
} }
{ {
auto shape = tvg::Shape::gen(); auto shape = tvg::Shape::gen();
shape->appendRect(120, 170, 100, 20); shape->appendRect(200, 30, 100, 20);
shape->fill(200, 150, 55); shape->fill(200, 150, 55);
shape->rotate(30); shape->rotate(30);
canvas->push(shape); canvas->push(shape);
@ -76,9 +102,10 @@ struct UserExample : tvgexam::Example
{ {
auto shape = tvg::Shape::gen(); auto shape = tvg::Shape::gen();
shape->appendRect(450, 50, 150, 100, 40, 50); shape->appendRect(450, -100, 150, 100, 40, 50);
shape->appendCircle(550, 300, 200, 100); shape->appendCircle(450, 50, 100, 50);
shape->fill(50, 50, 155); shape->fill(50, 50, 155);
shape->rotate(20.0f);
canvas->push(shape); canvas->push(shape);
bbox(canvas, shape); bbox(canvas, shape);
} }
@ -87,7 +114,7 @@ struct UserExample : tvgexam::Example
auto svg = tvg::Picture::gen(); auto svg = tvg::Picture::gen();
svg->load(EXAMPLE_DIR"/svg/tiger.svg"); svg->load(EXAMPLE_DIR"/svg/tiger.svg");
svg->scale(0.3f); svg->scale(0.3f);
svg->translate(500, 500); svg->translate(620, 50);
canvas->push(svg); canvas->push(svg);
bbox(canvas, svg); bbox(canvas, svg);
} }
@ -96,7 +123,7 @@ struct UserExample : tvgexam::Example
auto svg = tvg::Picture::gen(); auto svg = tvg::Picture::gen();
svg->load(EXAMPLE_DIR"/svg/tiger.svg"); svg->load(EXAMPLE_DIR"/svg/tiger.svg");
svg->scale(0.2f); svg->scale(0.2f);
svg->translate(170, 300); svg->translate(140, 215);
svg->rotate(45); svg->rotate(45);
canvas->push(svg); canvas->push(svg);
bbox(canvas, svg); bbox(canvas, svg);
@ -104,28 +131,36 @@ struct UserExample : tvgexam::Example
} }
{ {
auto scene = tvg::Scene::gen();
scene->scale(0.3f);
scene->translate(280, 330);
auto img = tvg::Picture::gen(); auto img = tvg::Picture::gen();
img->load(EXAMPLE_DIR"/image/test.png"); img->load(EXAMPLE_DIR"/image/test.png");
img->scale(0.3f); scene->push(img);
img->translate(150, 100);
canvas->push(img); canvas->push(scene);
bbox(canvas, img); bbox(canvas, scene);
} }
{ {
auto scene = tvg::Scene::gen();
scene->scale(0.3f);
scene->rotate(80);
scene->translate(200, 480);
auto img = tvg::Picture::gen(); auto img = tvg::Picture::gen();
img->load(EXAMPLE_DIR"/image/test.jpg"); img->load(EXAMPLE_DIR"/image/test.jpg");
img->scale(0.3f); scene->push(img);
img->rotate(80);
img->translate(200, 600); canvas->push(scene);
canvas->push(img); bbox(canvas, scene);
bbox(canvas, img);
} }
{ {
auto line = tvg::Shape::gen(); auto line = tvg::Shape::gen();
line->moveTo(400, 450); line->moveTo(470, 350);
line->lineTo(700, 450); line->lineTo(770, 350);
line->strokeWidth(20); line->strokeWidth(20);
line->strokeFill(55, 55, 0); line->strokeFill(55, 55, 0);
canvas->push(line); canvas->push(line);
@ -136,7 +171,7 @@ struct UserExample : tvgexam::Example
auto curve = tvg::Shape::gen(); auto curve = tvg::Shape::gen();
curve->moveTo(0, 0); curve->moveTo(0, 0);
curve->cubicTo(40.0f, -10.0f, 120.0f, -150.0f, 80.0f, 0.0f); curve->cubicTo(40.0f, -10.0f, 120.0f, -150.0f, 80.0f, 0.0f);
curve->translate(250, 700); curve->translate(50, 770);
curve->strokeWidth(2.0f); curve->strokeWidth(2.0f);
curve->strokeFill(255, 255, 255); curve->strokeFill(255, 255, 255);
canvas->push(curve); canvas->push(curve);
@ -147,7 +182,7 @@ struct UserExample : tvgexam::Example
auto curve = tvg::Shape::gen(); auto curve = tvg::Shape::gen();
curve->moveTo(0, 0); curve->moveTo(0, 0);
curve->cubicTo(40.0f, -10.0f, 120.0f, -150.0f, 80.0f, 0.0f); curve->cubicTo(40.0f, -10.0f, 120.0f, -150.0f, 80.0f, 0.0f);
curve->translate(350, 700); curve->translate(150, 750);
curve->rotate(20.0f); curve->rotate(20.0f);
curve->strokeWidth(2.0f); curve->strokeWidth(2.0f);
curve->strokeFill(255, 0, 255); curve->strokeFill(255, 0, 255);
@ -155,6 +190,76 @@ struct UserExample : tvgexam::Example
bbox(canvas, curve); bbox(canvas, curve);
} }
{
auto scene = tvg::Scene::gen();
scene->translate(550, 370);
scene->scale(0.7f);
auto shape = tvg::Shape::gen();
shape->moveTo(0, 0);
shape->lineTo(300, 200);
shape->lineTo(0, 200);
shape->fill(255, 0, 0);
shape->close();
shape->rotate(20);
scene->push(shape);
canvas->push(scene);
bbox(canvas, scene);
}
{
auto scene = tvg::Scene::gen();
scene->translate(350, 590);
scene->scale(0.7f);
auto shape = tvg::Shape::gen();
shape->moveTo(0, 0);
shape->lineTo(300, 200);
shape->lineTo(0, 200);
shape->fill(0, 255, 0);
shape->close();
scene->push(shape);
canvas->push(scene);
bbox(canvas, scene);
}
{
auto scene = tvg::Scene::gen();
scene->translate(650, 590);
scene->scale(0.7f);
scene->rotate(20);
auto shape = tvg::Shape::gen();
shape->moveTo(0, 0);
shape->lineTo(300, 200);
shape->lineTo(0, 200);
shape->fill(0, 255, 255);
shape->close();
scene->push(shape);
canvas->push(scene);
bbox(canvas, scene);
}
{
auto scene = tvg::Scene::gen();
scene->translate(250, 490);
scene->scale(0.7f);
auto text = tvg::Text::gen();
text->font("Arial", 50);
text->text("Text Test");
text->fill(255, 255, 0);
text->translate(0, 0);
text->rotate(16.0f);
scene->push(text);
canvas->push(scene);
bbox(canvas, scene);
}
return true; return true;
} }
}; };
@ -166,5 +271,5 @@ struct UserExample : tvgexam::Example
int main(int argc, char **argv) int main(int argc, char **argv)
{ {
return tvgexam::main(new UserExample, argc, argv); return tvgexam::main(new UserExample, argc, argv, true, 900, 900);
} }