Skip to main content

Simple sketching using a track pad.

I like to illustrate text with sketches. I think there are many instances when it is easier and quicker to convey ideas. I used to think that I need a graphics tablet for this. Previously I would sketch with pen and paper and then scan the drawing. This added an extra step, was a motivation barrier and was not as flexible has doing things digitally (where you can delete/edit stuff without having to start all over again). I tried a bit with the mouse, but found it very unwieldy.

Recently, however, I have discovered that for the simple line sketches I do a track pad works surprisingly better than I expected. I used Inkscape and the laptop track pad to do the sketch below. I can totally see how a real sketch artist who is interested in effectively using line weight/thickness to convey information will find this method unimpressive, and in the end I do envision buying a graphics tablet, but for now I will keep practicing with the track pad.

I think the track pad works well for me because it is a bit like finger painting and I can control my finger tip more finely than I can control a whole mouse, which has inertia and makes it difficult for me to do fast movements.

Comments

Popular posts from this blog

Flowing text in inkscape (Poster making)

You can flow text into arbitrary shapes in inkscape. (From a hint here).

You simply create a text box, type your text into it, create a frame with some drawing tool, select both the text box and the frame (click and shift) and then go to text->flow into frame.

UPDATE:

The omnipresent anonymous asked:
Trying to enter sentence so that text forms the number three...any ideas?
The solution:
Type '3' using the text toolConvert to path using object->pathSize as necessaryRemove fillUngroupType in actual text in new text boxSelect the text and the '3' pathFlow the text

Drawing circles using matplotlib

Use the pylab.Circle command

import pylab #Imports matplotlib and a host of other useful modules cir1 = pylab.Circle((0,0), radius=0.75, fc='y') #Creates a patch that looks like a circle (fc= face color) cir2 = pylab.Circle((.5,.5), radius=0.25, alpha =.2, fc='b') #Repeat (alpha=.2 means make it very translucent) ax = pylab.axes(aspect=1) #Creates empty axes (aspect=1 means scale things so that circles look like circles) ax.add_patch(cir1) #Grab the current axes, add the patch to it ax.add_patch(cir2) #Repeat pylab.show()

Pandas panel = collection of tables/data frames aligned by index and column

Pandas panel provides a nice way to collect related data frames together while maintaining correspondence between the index and column values:


import pandas as pd, pylab #Full dimensions of a slice of our panel index = ['1','2','3','4'] #major_index columns = ['a','b','c'] #minor_index df = pd.DataFrame(pylab.randn(4,3),columns=columns,index=index) #A full slice of the panel df2 = pd.DataFrame(pylab.randn(3,2),columns=['a','c'],index=['1','3','4']) #A partial slice df3 = pd.DataFrame(pylab.randn(2,2),columns=['a','b'],index=['2','4']) #Another partial slice df4 = pd.DataFrame(pylab.randn(2,2),columns=['d','e'],index=['5','6']) #Partial slice with a new column and index pn = pd.Panel({'A': df}) pn['B'] = df2 pn['C'] = df3 pn['D'] = df4 for key in pn.items: print pn[key] -> output …