AnnotationSketch code examples

Using AnnotationSketch to draw annotations from a file

The following code examples (in C and Lua) illustrate how to produce an image from a given GFF3 file using AnnotationSketch. The result is shown in Fig. 7. In essence, these code examples implement something like a simple version of the gt sketch tool from GenomeTools without most command-line options.

[Example rendering from parsed GFF3 file]

Figure 7: Example rendering of a GFF3 file with default style.

C code

(See src/examples/sketch_parsed.c in the source distribution.)

Lua code

(See gtscripts/sketch_parsed.lua in the source distribution. This example can be run by the command line gt gtscripts/sketch_parsed.lua <style_file> <PNG_file> <GFF3_file>)

Ruby code

(See gtruby/sketch_parsed.rb in the source distribution.)

Python code

(See gtpython/sketch_parsed.py in the source distribution.)

Using AnnotationSketch to draw user-generated annotations

The following C code example illustrates how to produce an image from annotation graphs created by user code. The result is shown in Fig. 8.

[Example rendering from user-generated annotations]

Figure 8: Example rendering of user-generated annotations with default style.

C code

(See src/examples/sketch_constructed.c in the source distribution.)

Lua code

(See gtscripts/sketch_constructed.lua in the source distribution. This example can be run by the command line gt gtscripts/sketch_constructed.lua <style_file> <PNG_file>)

Ruby code

(See gtruby/sketch_constructed.rb in the source distribution.)

Python code

(See gtpython/sketch_constructed.py in the source distribution.)