GraphiteEditor/Graphite

Drawing a shape at non-100% viewport zoom wrongly applies the scale to the Transform node not the shape

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#2,582 opened on Apr 16, 2025

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 (2 comments) (0 reactions) (0 assignees)Rust (25,662 stars) (1,176 forks)batch import
Good First Issue

Description

  1. Zoom out so you're not at 100% viewport zoom.
  2. Draw a rectangle.
  3. Notice the Transform node has a scale value other than 1 corresponding to the zoom level of the viewport.
  4. This should be 1 and the viewport zoom should have been applied to the calculation of the rectangle dimensions instead.

This occurs with Rectangle, Ellipse, Polygon, and Star— but not Line.

Contributor guide

Tech stack
rust
Domain
frontend
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Rust basics2D transform mathGraphite document model
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70
Research direction
Investigate the shape creation code in Graphite to understand why viewport zoom incorrectly scales the Transform node instead of shape dimensions. Compare the handling of Rectangle, Ellipse, Polygon, Star (buggy) with Line (works correctly). Look at shape tool handlers and document model files for how the Transform node's scale property is set. Check recent comments on the issue for specific code pointers.