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Center the SVG in the 2D demo

This commit is contained in:
Patrick Walton 2019-02-25 15:25:08 -08:00
parent 550c9feb58
commit 19c14da3aa
1 changed files with 3 additions and 2 deletions
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5
demo/common/src/lib.rs
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@ -60,7 +60,7 @@ const CAMERA_SCALE_SPEED_2D: f32 = 2.0;
const CAMERA_ZOOM_AMOUNT_2D: f32 = 0.1;
const NEAR_CLIP_PLANE: f32 = 0.01;
const FAR_CLIP_PLANE: f32 = 10.0;
const FAR_CLIP_PLANE: f32 = 10.0;
const LIGHT_BG_COLOR: ColorU = ColorU { r: 192, g: 192, b: 192, a: 255 };
const DARK_BG_COLOR: ColorU = ColorU { r: 32, g: 32, b: 32, a: 255 };
@ -759,7 +759,8 @@ impl Camera {
fn new_2d(view_box: RectF32, drawable_size: Point2DI32) -> Camera {
let scale = i32::min(drawable_size.x(), drawable_size.y()) as f32 *
scale_factor_for_view_box(view_box);
Camera::TwoD(Transform2DF32::from_scale(&Point2DF32::splat(scale)))
let origin = drawable_size.to_f32().scale(0.5) - view_box.size().scale(scale * 0.5);
Camera::TwoD(Transform2DF32::from_scale(&Point2DF32::splat(scale)).post_translate(origin))
}
fn new_3d(view_box: RectF32) -> Camera {