Python State Info Panelを使う

環境：Houdini 20.0.751

Viewer StateにState Info Panelを使ってUIをつくります。

def __init__(self, state_name, scene_viewer):
    self.state_name = state_name
    self.scene_viewer = scene_viewer
    
    # UIのテンプレート
    HUD_TEMPLATE = {
        "title": "Polyline", "desc": "tool", "icon": "SOP_subnet",
        "rows": [
            {"id": "mode", "label": "Mode", "value": "SELECT"},
            {"id": "mode_g", "type": "choicegraph", "count": 2, "value": 0},
            {"id": "switch_act", "label": "Switch Mode", "key": "Ctrl"},
            {"id": "add_act", "label": "Add/Select Prim", "key": "LMB"},
            {"id": "del_act", "label": "Delete Prim", "key": "MMB"},
        ]
    }
    
    self.scene_viewer.hudInfo(hud_template=HUD_TEMPLATE)

UIパネルを更新するにはこのようなコードを実行します。

updates = { "mode": {"value": "EDIT"},
            "mode_g": {"value": 1},
            "add_act": {"label": "Add Point"},
            "del_act": {"label": "Delete Point"},}
self.scene_viewer.hudInfo(hud_values = updates)

https://www.sidefx.com/ja/docs/houdini/hom/hud_info.html
公式の参考ページ