| ... | ... | @@ -4,26 +4,33 @@ from -- https://github.com/nortikin/sverchok/issues/1653 |
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### Node Defaults
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When we (as coders) submit a node, we decide on sane defaults. Sometimes those defaults are not optimal for you (the user). If you find yourself always tweaking the parameters of a node before using it, then you might want to define custom node defaults.
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When we (as coders) submit a node, we decide on sane defaults. Sometimes those defaults are not optimal for you (the user). If you find yourself always tweaking the parameters of a node before using it, then you might want to define custom node defaults. These are not the same as presets.
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We can now configure node defaults from a _.json_ file.
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we can configure two things:
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- (**node props**) any property on the node, including props that are not available from the UI
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- (**node function**) we can write a function, (explained below) and call this function on a specific node whenever it is created.
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We can now configure node defaults from a _.json_ file located in `..datafiles/sverchok/node_defaults/`. We can tell sverchok where to find this file by just passing the location of datafiles/sverchok in the user preferences of sverchok. It will look something like this:
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https://user-images.githubusercontent.com/619340/91434592-54301680-e865-11ea-83d0-dece782d4f78.png
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##### datafiles/sverchok/node_defaults/node_defaults.json
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```json
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{
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"SvGenFloatRange": {
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"SvGenNumberRange": {
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"props": [
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["stop_", 1.0],
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["stop_float", 1.0],
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["count_", 20],
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["mode", "FRANGE_COUNT"]
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["range_mode", "RANGE_COUNT"]
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]
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},
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"ViewerNode2": {
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"SvVDExperimental": {
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"props": [],
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"function": "view3d.init_vdmk2"
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"function": "view3d.init_vdmk3"
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}
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}
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```
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All we have to do is create key, value pair for each node.
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| ... | ... | @@ -43,25 +50,23 @@ import colorsys |
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import bpy
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def init_vdmk2(node):
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def init_vdmk3(node):
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def fold_color(color, shift):
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h, s, v = colorsys.rgb_to_hsv(*color)
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return colorsys.hsv_to_rgb(shift, s, v)
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return list(colorsys.hsv_to_rgb(shift, s, v))
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A = [0.938000, 0.948000, 0.900000, 1.000000]
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B = [0.500000, 0.752000, 0.899000, 1.000000]
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C = [0.030100, 0.488000, 0.899000, 1.000000]
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shift = random.random()
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node.vertex_colors = fold_color(A[:3], shift)
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node.edge_colors = fold_color(B[:3], shift)
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node.face_colors = fold_color(C[:3], shift)
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node.edge_width = 1.0
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node.vertex_size = 2.0
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node.vertex_color = fold_color(A[:3], shift) + [1.0]
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node.edge_color = fold_color(B[:3], shift) + [1.0]
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node.face_color = fold_color(C[:3], shift) + [1.0]
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node.line_width = 1.0
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node.point_size = 2.0
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```
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------------------
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| ... | ... | @@ -70,3 +75,4 @@ Each time you add a node, the `node_default_dict` is checked if the `bl_idname` |
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- this has no effect on nodes that you duplicate, they clone their properties according to `self.copy()`
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- this doesn't offer a visual way to set the preferences yet, that would be the next step.
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