blending_bug.ipynb

{
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  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "tags": []
   },
   "outputs": [],
   "source": [
    "import numpy as np\n",
    "from bqplot import Figure, LinearScale, Axis, ColorScale\n",
    "from bqplot_image_gl import ImageGL"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "tags": []
   },
   "outputs": [],
   "source": [
    "image1 = np.array([[[255, 0, 0, 255], [0, 0, 255, 255]], [[255, 0, 0, 0], [0, 0, 255, 0]]]).astype(np.float32)\n",
    "image1.shape"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "tags": []
   },
   "outputs": [],
   "source": [
    "image2 = np.array([[[0, 0, 255, 0], [255, 0, 0, 0]], [[0, 0, 255, 255], [255, 0, 0, 255]]]).astype(np.float32)\n",
    "image2.shape"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "tags": []
   },
   "outputs": [],
   "source": [
    "scale_x = LinearScale(min=0, max=1)\n",
    "scale_y = LinearScale(min=0, max=1)\n",
    "scales = {'x': scale_x,\n",
    "          'y': scale_y}\n",
    "axis_x = Axis(scale=scale_x, label='x')\n",
    "axis_y = Axis(scale=scale_y, label='y', orientation='vertical')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "tags": []
   },
   "outputs": [],
   "source": [
    "figure = Figure(scales=scales, axes=[axis_x, axis_y])\n",
    "\n",
    "scales_image = {'x': figure.axes[0].scale,\n",
    "                'y': figure.axes[1].scale,\n",
    "                'image': ColorScale(min=0, max=1)}\n",
    "\n",
    "imagegl1 = ImageGL(image=image1, scales=scales_image, x=[0, 1], y=[0, 1])\n",
    "imagegl2 = ImageGL(image=image2, scales=scales_image, x=[0, 1], y=[0, 1])\n",
    "\n",
    "figure.marks = (imagegl1,)\n",
    "figure"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "figure = Figure(scales=scales, axes=[axis_x, axis_y])\n",
    "\n",
    "scales_image = {'x': figure.axes[0].scale,\n",
    "                'y': figure.axes[1].scale,\n",
    "                'image': ColorScale(min=0, max=1)}\n",
    "\n",
    "imagegl2 = ImageGL(image=image2, scales=scales_image, x=[0, 1], y=[0, 1])\n",
    "\n",
    "figure.marks = (imagegl2,)\n",
    "figure"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "tags": []
   },
   "outputs": [],
   "source": [
    "figure = Figure(scales=scales, axes=[axis_x, axis_y])\n",
    "\n",
    "scales_image = {'x': figure.axes[0].scale,\n",
    "                'y': figure.axes[1].scale,\n",
    "                'image': ColorScale(min=0, max=1)}\n",
    "\n",
    "imagegl1 = ImageGL(image=image1, scales=scales_image, x=[0, 1], y=[0, 1])\n",
    "imagegl2 = ImageGL(image=image2, scales=scales_image, x=[0, 1], y=[0, 1])\n",
    "\n",
    "figure.marks = (imagegl1,imagegl2)\n",
    "figure"
   ]
  }
 ],
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