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examples tvg: added texmap use-case.

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Hermet Park 2022-12-07 14:22:04 +09:00
parent b02ebb9f7f
commit f03b260b19
2 changed files with 49 additions and 22 deletions
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71
src/examples/TvgSaver.cpp
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@ -52,6 +52,55 @@ void exportTvg()
//prepare the main scene
auto scene = tvg::Scene::gen();
//image data
ifstream file(EXAMPLE_DIR"/rawimage_200x300.raw");
if (!file.is_open()) return;
uint32_t *data = (uint32_t*) malloc(sizeof(uint32_t) * 200 * 300);
if (!data) return;
file.read(reinterpret_cast<char*>(data), sizeof(uint32_t) * 200 * 300);
file.close();
//texmap image
auto texmap = tvg::Picture::gen();
if (texmap->load(data, 200, 300, true) != tvg::Result::Success) return;
texmap->translate(100, 100);
//Composing Meshes
tvg::Polygon triangles[4];
triangles[0].vertex[0] = {{100, 125}, {0, 0}};
triangles[0].vertex[1] = {{300, 100}, {0.5, 0}};
triangles[0].vertex[2] = {{200, 550}, {0, 1}};
triangles[1].vertex[0] = {{300, 100}, {0.5, 0}};
triangles[1].vertex[1] = {{350, 450}, {0.5, 1}};
triangles[1].vertex[2] = {{200, 550}, {0, 1}};
triangles[2].vertex[0] = {{300, 100}, {0.5, 0}};
triangles[2].vertex[1] = {{500, 200}, {1, 0}};
triangles[2].vertex[2] = {{350, 450}, {0.5, 1}};
triangles[3].vertex[0] = {{500, 200}, {1, 0}};
triangles[3].vertex[1] = {{450, 450}, {1, 1}};
triangles[3].vertex[2] = {{350, 450}, {0.5, 1}};
if (texmap->mesh(triangles, 4) != tvg::Result::Success) return;
if (scene->push(move(texmap)) != tvg::Result::Success) return;
//clipped image
auto image = tvg::Picture::gen();
if (image->load(data, 200, 300, true) != tvg::Result::Success) return;
image->translate(400, 0);
image->scale(2);
auto imageClip = tvg::Shape::gen();
imageClip->appendCircle(400, 200, 80, 180);
imageClip->fill(0, 0, 0, 155);
imageClip->translate(200, 0);
image->composite(move(imageClip), tvg::CompositeMethod::ClipPath);
if (scene->push(move(image)) != tvg::Result::Success) return;
free(data);
tvg::Fill::ColorStop colorStops1[3];
colorStops1[0] = {0, 255, 0, 0, 255};
colorStops1[1] = {0.5, 0, 0, 255, 127};
@ -85,28 +134,6 @@ void exportTvg()
if (scene->push(move(shape1)) != tvg::Result::Success) return;
//clipped image
ifstream file(EXAMPLE_DIR"/rawimage_200x300.raw");
if (!file.is_open()) return;
uint32_t *data = (uint32_t*) malloc(sizeof(uint32_t) * 200 * 300);
if (!data) return;
file.read(reinterpret_cast<char*>(data), sizeof(uint32_t) * 200 * 300);
file.close();
auto image = tvg::Picture::gen();
if (image->load(data, 200, 300, true) != tvg::Result::Success) return;
image->translate(400, 0);
image->scale(2);
auto imageClip = tvg::Shape::gen();
imageClip->appendCircle(400, 200, 80, 180);
imageClip->fill(0, 0, 0, 155);
imageClip->translate(200, 0);
image->composite(move(imageClip), tvg::CompositeMethod::ClipPath);
if (scene->push(move(image)) != tvg::Result::Success) return;
free(data);
//nested paints
auto scene2 = tvg::Scene::gen();
scene2->translate(100, 100);

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src/examples/images/test.tvg
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