{
  "cells": [
    {
      "cell_type": "markdown",
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      "source": [
        "\n# Iris\n"
      ]
    },
    {
      "cell_type": "code",
      "execution_count": null,
      "metadata": {
        "collapsed": false
      },
      "outputs": [],
      "source": [
        "from deadleaves import LeafGeometryGenerator, LeafAppearanceSampler, ImageRenderer\nimport torch\n\n\ndef angle_by_position(d):\n    center_x = 365.5\n    center_y = 255.5\n    alpha = torch.arctan2(center_x - d[\"x_pos\"], center_y - d[\"y_pos\"])\n    return alpha\n\n\nposition_mask = torch.zeros((512, 731))\nY, X = torch.meshgrid(\n    torch.arange(731),\n    torch.arange(512),\n    indexing=\"xy\",\n)\ndist_from_center = torch.sqrt((X - 255.5) ** 2 + (Y - 365.5) ** 2)\nposition_mask = (dist_from_center <= 200) & (dist_from_center >= 50)\n\nmodel = LeafGeometryGenerator(\n    leaf_shape=\"ellipsoid\",\n    shape_param_distributions={\n        \"area\": {\"uniform\": {\"low\": 100.0, \"high\": 500.0}},\n        \"aspect_ratio\": {\"constant\": {\"value\": 0.3}},\n        \"orientation\": {\n            \"constant\": {\"value\": {\"from\": [\"x_pos\", \"y_pos\"], \"fn\": angle_by_position}}\n        },\n    },\n    image_shape=(512, 731),\n    position_mask=position_mask,\n    n_sample=1000,\n)\nleaf_table, segmentation_map = model.generate_segmentation()\n\ncolor_params = {\"gray\": {\"normal\": {\"loc\": 0.5, \"scale\": 0.2}}}\n\ncolormodel = LeafAppearanceSampler(leaf_table=leaf_table)\ncolormodel.sample_color(color_param_distributions=color_params)\n\nrenderer = ImageRenderer(\n    leaf_table=colormodel.leaf_table,\n    segmentation_map=segmentation_map,\n    background_color=torch.tensor([1.0, 1.0, 1.0]),\n)\nrenderer.render_image()\nrenderer.show()"
      ]
    }
  ],
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      "display_name": "Python 3",
      "language": "python",
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      "codemirror_mode": {
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      "file_extension": ".py",
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