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优化取模组件,取模效果更好

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liub
2026-04-03 17:24:55 +08:00
parent 1264ec70a2
commit 1e51023c00
9 changed files with 132 additions and 89 deletions
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18
components/TextToHex/textToDotMatrixV1.vue
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@ -59,7 +59,7 @@
* 清除Canvas内容
*/
clearCanvas() {
this.ctx.setFillStyle(this.bgColor);
this.ctx.setFillStyle('#FFFFFF');//this.bgColor
this.ctx.fillRect(0, 0, this.currentCanvasWidth, this.currentCanvasHeight);
},
@ -105,10 +105,18 @@
let G = imageData[index+1];
let B = imageData[index]+2;
// let r = imageData[i];
// let g = imageData[i+1];
// let b = imageData[i+2];
let gray = (R + G + B) / 3;
let bit = gray < 255 ? 1 : 0;
// 黑色像素（R值较低）视为1，白色视为0
let isBlack = R < 128 ? 1 : 0;
arr.push(isBlack);
// let isBlack = R < 128 ? 1 : 0;
arr.push(bit);
}
}
@ -159,11 +167,11 @@
this.clearCanvas();
// 3. 设置文字样式
ctx.setFillStyle(this.color);
ctx.setFillStyle('#000000');//this.color
ctx.setTextBaseline('middle');
// ctx.setTextAlign('center')
ctx.setFontSize(this.fontSize);
ctx.font = `${this.fontSize}px "PingFangBold", "PingFang SC", Arial, sans-serif`;
ctx.font = `${this.fontSize}px PingFangBold", "PingFang SC", Arial, sans-serif`;
// 4. 绘制当前行文本
let currentX = 0;