WCAG. Update line width detection

veraPDF · Jan 6, 2025 · c8119c1 · c8119c1
1 parent 88bf4e0
commit c8119c1
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Showing 2 changed files with 6 additions and 1 deletion.
diff --git a/wcag-validation/src/main/java/org/verapdf/gf/model/factory/chunks/ChunkParser.java b/wcag-validation/src/main/java/org/verapdf/gf/model/factory/chunks/ChunkParser.java
@@ -823,7 +823,7 @@ private LineChunk transformLineChunk(LineChunk lineChunk, double lineWidth, int
 				graphicsState.getCTM().transformY(lineChunk.getStartX(), lineChunk.getStartY()),
 				graphicsState.getCTM().transformX(lineChunk.getEndX(), lineChunk.getEndY()),
 				graphicsState.getCTM().transformY(lineChunk.getEndX(), lineChunk.getEndY()),
-				lineWidth, lineCap);
+				lineWidth * graphicsState.getCTM().getScaleValue(), lineCap);
 	}
 
 	private static void processColorSpace(GraphicsState graphicState, ResourceHandler resourcesHandler,

diff --git a/wcag-validation/src/main/java/org/verapdf/gf/model/factory/chunks/Matrix.java b/wcag-validation/src/main/java/org/verapdf/gf/model/factory/chunks/Matrix.java
@@ -204,6 +204,11 @@ public Vertex transformVertex(Vertex v) {
 	public double getRotationDegree() {
 		return Math.toDegrees(Math.atan2(getShearY(), getScaleX()));
 	}
+
+	public double getScaleValue() {
+		return Math.max(Math.sqrt(getScaleY() * getScaleY() + getShearX() * getShearX()),
+				Math.sqrt(getScaleX() * getScaleX() + getShearY() * getShearY()));
+	}
 
 	@Override
 	public String toString() {