Re: What determines #1 and #2 values (with &) for ContourLabels?

*To*: mathgroup at smc.vnet.net*Subject*: [mg87311] Re: What determines #1 and #2 values (with &) for ContourLabels?*From*: dh <dh at metrohm.ch>*Date*: Mon, 7 Apr 2008 05:17:59 -0400 (EDT)*References*: <fta9i4$e62$1@smc.vnet.net>

Hi, the manual says: ContourLabels->f specifies that the label for each contour should be f[x,y,z]. But I could nowhere find the meaning of x,y,z. By trying I found that x and y are the coordinates of the position where ContourPlot would like to place the label. And z is either the equation given to ContourPlot or the value of the contour line if a function is spezified. hope this helps, Daniel mr.pajenn at gmail.com wrote: > Here's the example of a ContourPlot: > > {i = 0, j = 0}; > > ContourPlot[{x == 4 + y/4, y == 2 + x/2}, {x, 0, 10}, {y, 0, 10}, > ContourLabels -> (Text[#3, {val1[i += 1] = #1, val2[j += 1] = #2}] > &)] > > Print[{val1[1], val2[1], val1[2], val2[2]}] > > The output is a basic plot with two lines, and I've set it to record > and print the values of #1 and #2 arguments, which are: > val1[1] = 6.4857 > val2[1] = 9.9429 > val1[2] = 0.095238 > val2[2] = 2.0476 > > I'd like to know where those values came from so that I can apply the > #1 and #2 arguments intelligibly. > > Thanks in advance. > >