askew

Toy curves editor made for Curves and Surfaces in Computer Graphics course at university. It features CPU-based computations and rendering, very low memory footprint (13M after start) and IPC (see scripts/).

How to run

• download and unzip a JetBrainsMonoNL-Regular.ttf font file
• download the latest binary from releases and place it in the same directory as font file
• chmod +x askew
• ./askew run

List of initial parameters is available under ./askew run --help.

Compilation

First, you need to install the latest stable Rust toolchain. Then follow these instructions:

• git clone https://github.com/pitcer/askew.git
• cd askew
• cargo run --release -- run

You can also directly use compiled binary at ./target/release/askew.

Keybinds

• : - enter command mode
• enter - execute command
• escape - exit mode
• p - change mode to point
• s - change mode to point select
• a - change mode to point add or add curve
• d - delete curve or point
• j - previous curve or point
• k - next curve or point
• i - increase rotation or weight
• o - decrease rotation or weight
• h - show convex hull
• up|down|left|right - move curve or point

In-editor commands

• :get show_convex_hull
• :get interpolation_nodes
• :get samples
• :set show_convex_hull <bool>
• :set interpolation_nodes <chebyshev|equally_spaced>
• :set samples <uint>
• :toggle show_convex_hull
• :toggle control_line
• :rotate <deg> [curve id]
• :move <x shift> <y shift>
• :save [path]
• :open [path]
• :set_curve_type <polyline|convex_hull|interpolation|bezier|rational_bezier>
• :get_curves_length
• :get_length <curve id>
• :get_point <curve id> <point id>
• :move_point <curve id> <point id> <x> <y>
• :trochoid_properties <range_start,range_end,r_1,r_2,w_1,w_2>