https://bugs.kde.org/show_bug.cgi?id=436422
Bug ID: 436422
Summary: Concentric ellipse assistant tool fails to draw a
perfect circle when using "snap to assistants"
Product: krita
Version: 4.4.3
Platform: Appimage
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Tool/Assistants
Assignee: krita-bugs-n...@kde.org
Reporter: aut...@autumnlansing.com
Target Milestone: ---
Created attachment 138036
--> https://bugs.kde.org/attachment.cgi?id=138036&action=edit
Video showing bug with concentric ellipse tool
SUMMARY
The concentric ellipse assistant tool fails to draw a perfect circle when using
"snap to assistants." When you begin the stroke, the pen travels a short
distance before anything appears on the canvas, and when the stroke does appear
it jumps from the point where you first put down the pen to the point where the
pen currently sits, creating a straight line. Continuing the stroke happens in
a perfect circle until you reach a point near the end of the circle, and then
it again stops and makes another straight line jump to the point where the
circle first began. The two straight line jumps are equal in length.
STEPS TO REPRODUCE
1. Create a concentric ellipse with the assistant tool.
2. Draw a circle with "snap to assistants."
OBSERVED RESULT
The stroke jumps in a straight line at the beginning and at the end of the
circle.
EXPECTED RESULT
A perfect circle without any straight lines.
Krita
Version: 4.4.3
Languages: en_US, en
Hidpi: true
Qt
Version (compiled): 5.12.9
Version (loaded): 5.12.9
OS Information
Build ABI: x86_64-little_endian-lp64
Build CPU: x86_64
CPU: x86_64
Kernel Type: linux
Kernel Version: 5.10.21-200.fc33.x86_64
Pretty Productname: Fedora 33 (Cinnamon)
Product Type: fedora
Product Version: 33
Desktop: X-Cinnamon
OpenGL Info
Vendor: "NVIDIA Corporation"
Renderer: "GeForce GTX 660/PCIe/SSE2"
Version: "4.6.0 NVIDIA 460.56"
Shading language: "4.60 NVIDIA"
Requested format: QSurfaceFormat(version 3.0, options
QFlags<QSurfaceFormat::FormatOption>(DeprecatedFunctions), depthBufferSize 24,
redBufferSize 8, greenBufferSize 8, blueBufferSize 8, alphaBufferSize 8,
stencilBufferSize 8, samples -1, swapBehavior QSurfaceFormat::DoubleBuffer,
swapInterval 0, colorSpace QSurfaceFormat::DefaultColorSpace, profile
QSurfaceFormat::CompatibilityProfile)
Current format: QSurfaceFormat(version 4.6, options
QFlags<QSurfaceFormat::FormatOption>(DeprecatedFunctions), depthBufferSize 24,
redBufferSize 8, greenBufferSize 8, blueBufferSize 8, alphaBufferSize 8,
stencilBufferSize 8, samples -1, swapBehavior QSurfaceFormat::DoubleBuffer,
swapInterval 0, colorSpace QSurfaceFormat::DefaultColorSpace, profile
QSurfaceFormat::CompatibilityProfile)
Version: 4.6
Supports deprecated functions true
is OpenGL ES: false
QPA OpenGL Detection Info
supportsDesktopGL: true
supportsOpenGLES: true
isQtPreferOpenGLES: false
Hardware Information
GPU Acceleration: auto
Memory: 24034 Mb
Number of Cores: 4
Swap Location: /tmp
Current Settings
Current Swap Location: /tmp
Current Swap Location writable: true
Undo Enabled: true
Undo Stack Limit: 30
Use OpenGL: true
Use OpenGL Texture Buffer: true
Use AMD Vectorization Workaround: false
Canvas State: OPENGL_SUCCESS
Autosave Interval: 900
Use Backup Files: true
Number of Backups Kept: 1
Backup File Suffix: ~
Backup Location: Same Folder as the File
Backup Location writable: false
Use Win8 Pointer Input: false
Use RightMiddleTabletButton Workaround: false
Levels of Detail Enabled: false
Use Zip64: false
Display Information
Number of screens: 2
Screen: 0
Name: DVI-D-0
Depth: 24
Scale: 1
Resolution in pixels: 1920x1080
Manufacturer: HP Inc.
Model: HP VH240a-
Refresh Rate: 60
Screen: 1
Name: DP-0
Depth: 24
Scale: 1
Resolution in pixels: 1920x1080
Manufacturer: LG Electronics
Model: LG IPS FULLHD
Refresh Rate: 60
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