我稍微修改了演示#11,以加载我的图像而不是演示的。
我可以加载我的MRI图像很好,见演示。如果我将标签映射作为主卷加载,它也能工作。
window.onload = function() {
// create and initialize a 3D renderer
var r = new X.renderer3D();
r.init();
// create a X.volume
var volume = new X.volume();
// Attach the single-file dicom in .NRRD format
// this works with gzip/gz/raw encoded NRRD files but XTK also supports other
// formats like MGH/MGZ
volume.file = '1123_N3.nii.gz';
// we also attach a label map to show segmentations on a slice-by-slice base
// volume.labelmap.file = '1123_seg.nii.gz';
// add the volume
r.add(volume);
// the onShowtime method gets executed after all files were fully loaded and just before the first rendering attempt
r.onShowtime = function() {
//
// The GUI panel
//
// (we need to create this during onShowtime(..) since we do not know the
// volume dimensions before the loading was completed)
var gui = new dat.GUI();
// the following configures the gui for interacting with the X.volume
var volumegui = gui.addFolder('Volume');
// now we can configure controllers which switch between slicing and volume rendering
var vrController = volumegui.add(volume, 'volumeRendering');
// configure the volume rendering opacity
var opacityController = volumegui.add(volume, 'opacity', 0, 1).listen();
// and the threshold in the min..max range
var lowerThresholdController = volumegui.add(volume, 'lowerThreshold', volume.min, volume.max);
var upperThresholdController = volumegui.add(volume, 'upperThreshold', volume.min, volume.max);
// the indexX,Y,Z are the currently displayed slice indices in the range [0 - (dimensions-1)]
var sliceXController = volumegui.add(volume, 'indexX', 0, volume.range[0] - 1);
var sliceYController = volumegui.add(volume, 'indexY', 0, volume.range[1] - 1);
var sliceZController = volumegui.add(volume, 'indexZ', 0, volume.range[2] - 1);
volumegui.open();
// and this configures the gui for interacting with the label map overlay
var labelmapgui = gui.addFolder('Label Map');
var labelMapVisibleController = labelmapgui.add(volume.labelmap, 'visible');
var labelMapOpacityController = labelmapgui.add(volume.labelmap, 'opacity', 0, 1);
labelmapgui.open();
};
// adjust the camera position a little bit, just for visualization purposes
r.camera.position = [120, 80, 160];
// showtime! this triggers the loading of the volume and executes r.onShowtime() once done
r.render();
};但是,如果我将标签映射添加到我的卷volume.labelmap.file = '1123_seg.nii.gz';中,加载失败,卷永远不会显示,请参见破碎的演示。控制台中唯一的错误是:
TypeError: b.e.c.cMath.floor(…)未定义
知道什么可能是错的吗?我应该如何调试这些错误?
发布于 2014-07-01 21:26:08
像这样的Javascript库对于生产准备版本来说通常是小型化的。调试最小化的javascript代码几乎是不可能的,但是您可以看到调用堆栈中的一个方法名是.parse,它立即表明它存在解析标签映射文件的问题。
大多数javascript库还将包括一个不缩小的-debug版本。我似乎无法为xtk找到一个调试版本,但下面是为自己创建调试版本的过程:
<script src="lib/google-closure-library/closure/goog/base.js"></script> <script src="xtk-deps.js"></script>
<script> goog.require("X"); goog.require("X.renderer3D"); </script>
<script type="text/javascript" src="demo.js"></script>现在您可以调试了,您应该看到您的错误:
Uncaught TypeError: Cannot read property '_texture' of undefined parser.js:1205
X.parser.reslice parser.js:1205
X.parserNII.parse parserNII.js:258
(anonymous function)从现在起,你应该能够找到你的问题。好像缺少了纹理。
https://stackoverflow.com/questions/24374847
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