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*Subject*: contour with logarithmic axis*From*: Hilmar GUDMUNDSSON GL D21 2-4093 <hilmar(at)vaw.baug.ethz.ch>*Date*: Fri, 08 Jun 2001 17:13:29 +0200*Newsgroups*: comp.lang.idl-pvwave*Organization*: Swiss Federal Institute of Technology (ETHZ)*Xref*: news.doit.wisc.edu comp.lang.idl-pvwave:25275

I'm having problems with contour using a logarithmic x axis. When I contour the data using CONTOUR, matrix, x,y, xrange = [xmin, xmax], yrange = [ymin, ymax], $ xtitle = x_t, ytitle = y_t, max_value = 1000., level = levels, xtype=1 the contour lines only appear on a part of the plot. Depending on the exact values of xmin and xmax, the fraction of the plotting area that is contoured changes in an erratic fashion. I can used alog10(matrix) and alog10(x), which produces a plot which is OK but I would rather like to stick to having the x axis logarithmic if possible. Has someone else run into this problem? Any solutions? hilmar

**Follow-Ups**:**Re: contour with logarithmic axis***From:*David Fanning

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