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Alias the pixel for nicer drawing

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This commit is contained in:
Evert Timberg 2015-12-28 09:37:31 -05:00
parent f2899934db
commit 754268890b
2 changed files with 14 additions and 10 deletions
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4
src/core/core.scale.js
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@ -637,8 +637,12 @@
if (this.isHorizontal()) {
y1 = y2 = this.options.position === 'top' ? this.bottom : this.top;
y1 += helpers.aliasPixel(this.ctx.lineWidth);
y2 += helpers.aliasPixel(this.ctx.lineWidth);
} else {
x1 = x2 = this.options.position === 'left' ? this.right : this.left;
x1 += helpers.aliasPixel(this.ctx.lineWidth);
x2 += helpers.aliasPixel(this.ctx.lineWidth);
}
this.ctx.moveTo(x1, y1);

20
test/scale.linear.tests.js
View File

@ -986,10 +986,10 @@ describe('Linear Scale', function() {
"args": ["rgba(0, 0, 0, 0.1)"]
}, {
"name": "moveTo",
"args": [0, 100]
"args": [0, 100.5]
}, {
"name": "lineTo",
"args": [200, 100]
"args": [200, 100.5]
}, {
"name": "stroke",
"args": []
@ -1059,10 +1059,10 @@ describe('Linear Scale', function() {
"args": ["rgba(0, 0, 0, 0.1)"]
}, {
"name": "moveTo",
"args": [0, 100]
"args": [0, 100.5]
}, {
"name": "lineTo",
"args": [200, 100]
"args": [200, 100.5]
}, {
"name": "stroke",
"args": []
@ -1518,10 +1518,10 @@ describe('Linear Scale', function() {
"args": ["rgba(0, 0, 0, 0.1)"]
}, {
"name": "moveTo",
"args": [30, 0]
"args": [30.5, 0]
}, {
"name": "lineTo",
"args": [30, 300]
"args": [30.5, 300]
}, {
"name": "stroke",
"args": []
@ -1649,10 +1649,10 @@ describe('Linear Scale', function() {
"args": ["rgba(0, 0, 0, 0.1)"]
}, {
"name": "moveTo",
"args": [30, 0]
"args": [30.5, 0]
}, {
"name": "lineTo",
"args": [30, 300]
"args": [30.5, 300]
}, {
"name": "stroke",
"args": []
@ -1906,10 +1906,10 @@ describe('Linear Scale', function() {
"args": ["rgba(0, 0, 0, 0.1)"]
}, {
"name": "moveTo",
"args": [30, 0]
"args": [30.5, 0]
}, {
"name": "lineTo",
"args": [30, 300]
"args": [30.5, 300]
}, {
"name": "stroke",
"args": []