[plt-scheme] Quick help with image.ss/universe.ss teachpacks

From: Paul Ojanen (engineer at alum.mit.edu)
Date: Wed Apr 28 16:17:37 EDT 2010

Try putting


(require 2htdp/image)


at the top of your file rather than "adding" the Teachpack.  I've been
wondering if the add-Teachpack process uses the old image library.





From: plt-scheme-bounces at list.cs.brown.edu
[mailto:plt-scheme-bounces at list.cs.brown.edu] On Behalf Of Jessica Sonday
Sent: Wednesday, April 28, 2010 4:06 PM
To: plt-scheme at list.cs.brown.edu
Subject: [plt-scheme] Quick help with image.ss/universe.ss teachpacks




Sorry to bother with what is probably an easy fix, but I've been searching
for a few hours now on how to fix my issue. I have the latest version
(4.2.5) and cannot seem to get anything to rotate/crop, nor can I make
shapes like right-triangle. I have the image and universe
teachpacks/libraries added, and am using Beginning Student with List
Abbreviations as my Teaching Language. When I input something like


(rotate 45 (ellipse 60 20 "solid" "purple"))


I get


reference to an identifier before its definition: rotate


>From what I've read, these are defined in the 2htdp/image teachpack. Am I
missing something obvious?


Thank you very much for your time.



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