axis() produces junk on DEC alpha (PR#274)

[albrecht.gebhardt@uni-klu.ac.at]

Full_Name: Albrecht Gebhardt
Version: 0.65.0
OS: Digital Unix 4.0E
Submission from: (NULL) (212.17.104.62)


Plottimg on the Alpha stopped working with 0.65.0.

The tickmarks have a length of -Inf and go across the whole 
plot.

A first solution is the following patch:

--- src/main/plot.c.alpha-patch Mon Sep 13 01:37:11 1999
+++ src/main/plot.c     Mon Sep 13 01:58:16 1999
@@ -832,7 +832,7 @@
        }
        dd->gp.col = fg;
        GLine(REAL(at)[0], y, REAL(at)[n - 1], y, USER, dd);
-       if (R_FINITE(dd->gp.tck)) {
+       if (R_FINITE(dd->gp.tck) && !(ISNAN(dd->gp.tck))) {
            /* The S way of doing ticks */
            double y0, y1;
            if (dd->gp.tck > 0.5) {
@@ -922,7 +922,7 @@
        }
        dd->gp.col = fg;
        GLine(x, REAL(at)[0], x, REAL(at)[n - 1], USER, dd);
-       if (R_FINITE(dd->gp.tck)) {
+       if (R_FINITE(dd->gp.tck) && !(ISNAN(dd->gp.tck))) {
            /* The S way of doing ticks */
            double x0, x1;
            if (dd->gp.tck > 0.5) {


Albrecht Gebhardt


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