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Very simple hack to work around scaling problem #5

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merged 1 commit into from
Jun 29, 2015
Merged

Very simple hack to work around scaling problem #5

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23 changes: 23 additions & 0 deletions lib/src/visualisation.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -100,6 +100,29 @@ class Visualisation {
});
}

void render_SCALING_HACK(num width, num height) {
_applyTransforms();

int w = (xRange.max - xRange.min).ceil() + 1;
int h = (yRange.max - yRange.min).ceil() + 1;
Image image = new Image(width, height);

for (int i = 0; i < xs.length; i++) {
image.setPixel(
(((xs[i] - xRange.min) / w) * width).floor(),
(((ys[i] - yRange.min) / h) * height).floor(), colors[i]);
}

// if (width != -1) {
// image = copyResize(image, width, height, NEAREST);
// }
new io.File(_imagePrefix + new DateTime.now().toString() + '.png')
.create(recursive: true)
.then((io.File file) {
file.writeAsBytesSync(encodePng(image));
});
}

/// Applies the transforms to the stored data points.
/// It modifies the data point values, so no more data should be added after
/// calling this method.
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