René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"ShapeElementList only supports 170 num_segments？ Too little","articleBody":"### Problem\nShapeElementList, as an efficient method for drawing batches, only supports 170 **num_segments**, which is too few or there may be some bugs.\n\n### Source code example\nThis is the official code for create_ellipse_filled, **num_segments** is a important argument, no problem.\n```\ndef create_ellipse_filled(\n    center_x: float,\n    center_y: float,\n    width: float,\n    height: float,\n    color: RGBA255,\n    tilt_angle: float = 0,\n    num_segments: int = 128,\n) -\u003e Shape:\n\n    Args:\n        center_x: X position of the center of the ellipse\n        center_y: Y position of the center of the ellipse\n        width: Width of the ellipse\n        height: Height of the ellipse\n        color: A color such as a :py:class:`~arcade.types.Color`\n        tilt_angle: Angle to tilt the ellipse\n        num_segments: Number of segments to use to draw the ellipse\n```\n### Problem occurred\nBut,  if **num_segments\u003e170**, ShapeElementList (ellipse_list) will disappear, **ShapeElementList.draw()** will draw nothing\nAs shown in the following code：\n```\nellipse_list = ShapeElementList()\nellipse = create_ellipse_filled(0, 0, 500, 500, arcade.color.SPANISH_VIOLET, 0, num_segments=170)\nellipse_list.append(ellipse)\nellipse_list.draw()                     # if num_segments\u003e170, ShapeElementList will disappear\n```\n### Analyze\nRepeated experiments have yielded the number 170, which is a very strange number. This should be a bug, theoretically ShapeElementList should accommodate a much larger quantity of **num_segments** than this 170.\n\n\n","author":{"url":"https://github.com/philox12358","@type":"Person","name":"philox12358"},"datePublished":"2025-11-12T08:21:46.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/2794/arcade/issues/2794"}