+ [task#127424] add region coloring logic of think3c widget.

2024-09-05 16:39:53 +08:00
parent b348b851db
commit a21f661abf
1 changed files with 19 additions and 0 deletions
@@ -202,7 +202,26 @@ function colorRegions(binaryImageData)
                ctx.save();

                ctx.fillStyle = colors[colorIndex % colors.length];
+
+                /* 遍历区域所有行，进行颜色填充。 */
+                /* Traverse all rows in the region and fill them with colors. */
+                region.rows.forEach((row, key) => {
+                    if(row)
+                    {
+                        if(Array.isArray(row))
+                        {
+                            row.forEach((item) => {
+                                ctx.fillRect(item.left, key, item.right - item.left + 1, 1);
+                            });
+                        }
+                        else
+                        {
+                            ctx.fillRect(row.left, key, row.right - row.left + 1, 1);
+                        }
+                    }
+                });
            });
+
            resolve(canvas.toDataURL());
        };
    });