aboutsummaryrefslogtreecommitdiff
path: root/sys/mwcs/gen/mwltrand.x
diff options
context:
space:
mode:
authorJoseph Hunkeler <jhunkeler@gmail.com>2015-07-08 20:46:52 -0400
committerJoseph Hunkeler <jhunkeler@gmail.com>2015-07-08 20:46:52 -0400
commitfa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 (patch)
treebdda434976bc09c864f2e4fa6f16ba1952b1e555 /sys/mwcs/gen/mwltrand.x
downloadiraf-linux-fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4.tar.gz
Initial commit
Diffstat (limited to 'sys/mwcs/gen/mwltrand.x')
-rw-r--r--sys/mwcs/gen/mwltrand.x26
1 files changed, 26 insertions, 0 deletions
diff --git a/sys/mwcs/gen/mwltrand.x b/sys/mwcs/gen/mwltrand.x
new file mode 100644
index 00000000..d35670c7
--- /dev/null
+++ b/sys/mwcs/gen/mwltrand.x
@@ -0,0 +1,26 @@
+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include "../mwcs.h"
+
+# MW_LTRAN -- Perform a general N-dimensional linear transformation, i.e.,
+# matrix multiply and translation.
+
+procedure mw_ltrand (p1, p2, ltm, ltv, ndim)
+
+double p1[ndim] #I input point
+double p2[ndim] #O transformed output point
+double ltm[ndim,ndim] #I linear transformation matrix
+double ltv[ndim] #I linear translation vector
+int ndim #I dimension of system
+
+int i, j
+double p3[MAX_DIM]
+
+begin
+ call amovd (p1, p3, ndim)
+ do j = 1, ndim {
+ p2[j] = ltv[j]
+ do i = 1, ndim
+ p2[j] = p2[j] + ltm[i,j] * p3[i]
+ }
+end