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- Newsgroups: comp.graphics
- Path: sparky!uunet!usc!news.service.uci.edu!unogate!stgprao
- From: stgprao@st.unocal.COM (Richard Ottolini)
- Subject: Re: Graphical library/toolkit for map display
- Message-ID: <1993Jan23.193704.15213@unocal.com>
- Keywords: graphics map gis library toolkit
- Sender: news@unocal.com (Unocal USENET News)
- Organization: Unocal Corporation
- References: <1993Jan23.160709.7083@dikas.no>
- Date: Sat, 23 Jan 1993 19:37:04 GMT
- Lines: 25
-
- In article <1993Jan23.160709.7083@dikas.no> jon@dikas.no (Jon Marthins) writes:
- >Hello,
- >
- >I'm going to write a program to view map data efficiently (vectors, areas,
- >symbols etc). I don't want to use a fully configured GIS program.
- >
- >The question is to find a suitable library/toolkit to base such an utility
- >on. The library must handle vectors, filled polygons, raster and vector
- >symbols. It should be possible to use vector symbols to draw lines for
- >example. The viewer will be 2D, but 3D might be needed later. I want
- >to use my own datastructure for storing map objects (i.e attributes to
- >a land area object describes the color and fillstyle for the area).
- >
- >I'm looking for "the best" library for this, i.e the right tradeoff between
- >speed/flexibility/coding complexity. I'm thinking in the lines of
- >Xlib, PEXlib, OpenGL, PHIGS, GKS, Uniras, ???
- >
- Unidraw is a MacDraw-like programable-extendable toolkit distributed
- in the /contrib/.../interviews/ section of X11.
- You would add your method of reading and writing data files to the program.
- You might also add more complex drawing objects than the usual MacDraw primitives.
- I've seen it extended to circuit design, graphic design,
- and geologic modelling.
- It doesn't have 3D. It is object-oriented in C++.
-
-