Mirrors/Chart.js
1
0
Fork 0
mirror of https://github.com/chartjs/Chart.js.git synced 2024-10-06 20:29:12 +02:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #1215 from etimberg/fix/scalereverse

Browse Source 
Linear scale is reversible
This commit is contained in:
Evert Timberg 2015-06-15 18:02:17 -04:00
commit 15d9a044c6
1 changed files with 14 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
src/scales/scale.linear.js
View File

@ -22,6 +22,7 @@
},
// scale numbers
reverse: false,
beginAtZero: false,
override: null,
@ -122,6 +123,16 @@
// range of the scale
this.max = helpers.max(this.ticks);
this.min = helpers.min(this.ticks);
if (this.options.reverse) {
this.ticks.reverse();
this.start = this.max;
this.end = this.min;
} else {
this.start = this.min;
this.end = this.max;
}
},
buildLabels: function() {
// We assume that this has been run after ticks have been generated. We try to figure out
@ -152,13 +163,13 @@
// This must be called after fit has been run so that
// this.left, this.top, this.right, and this.bottom have been defined
var pixel;
var range = this.max - this.min;
var range = this.end - this.start;
if (this.isHorizontal()) {
pixel = this.left + (this.width / range * (value - this.min));
pixel = this.left + (this.width / range * (value - this.start));
} else {
// Bottom - top since pixels increase downard on a screen
pixel = this.bottom - (this.height / range * (value - this.min));
pixel = this.bottom - (this.height / range * (value - this.start));
}
return pixel;