modify getWCS in Tools

tools/get_pointing.py

@@ -63,10 +63,15 @@ class Chip(object):
             ycen = self.cen_pix_y
         if pix_scale == None:
             pix_scale = self.pix_scale
+        # dudx =  -np.cos(img_rot.rad) * pix_scale
+        # dudy =  -np.sin(img_rot.rad) * pix_scale
+        # dvdx =  -np.sin(img_rot.rad) * pix_scale
+        # dvdy =  +np.cos(img_rot.rad) * pix_scale
+
         dudx = -np.cos(img_rot.rad) * pix_scale
-        dudy =  -np.sin(img_rot.rad) * pix_scale
+        dudy = +np.sin(img_rot.rad) * pix_scale
         dvdx = -np.sin(img_rot.rad) * pix_scale
-        dvdy =  +np.cos(img_rot.rad) * pix_scale
+        dvdy = -np.cos(img_rot.rad) * pix_scale
         
         # dudx =  +np.sin(img_rot.rad) * pix_scale
         # dudy =  +np.cos(img_rot.rad) * pix_scale
@@ -139,12 +144,11 @@ def getobsPA(ra, dec):
     angle = math.acos(np.dot(l1l2cross,pdl2cross)/(np.linalg.norm(l1l2cross)*np.linalg.norm(pdl2cross)))
 
     angle = (angle)/math.pi*180
-
-    # if (ra>90 and ra< 270):
-    #     angle=-angle
+    angle = angle + 90
+    if (ra<90 or ra> 270):
+        angle=-angle
     return angle
 
-
 # @jit()
 def getSelectPointingList(center = [60,-40], radius = 2):
     points = np.loadtxt('sky.dat')
@@ -261,7 +265,7 @@ def findPointingbyChipID(chipID = 8, ra = 60., dec = -40.):
 
 
 if __name__ == "__main__":
-    tchip, tra, tdec = 8, 60., -40.
+    tchip, tra, tdec = 13, 60., -40.
     pointing = findPointingbyChipID(chipID=tchip, ra=tra, dec=tdec)
     print("[ra_center, dec_center, image_rot]: ", pointing)
 

tools/target_location_check.py

@@ -119,10 +119,15 @@ def getTanWCS(ra, dec, img_rot, pix_scale=0.074):
     """
     xcen, ycen = 0, 0
     img_rot = img_rot * galsim.degrees
+    # dudx = -np.cos(img_rot.rad) * pix_scale
+    # dudy = -np.sin(img_rot.rad) * pix_scale
+    # dvdx = -np.sin(img_rot.rad) * pix_scale
+    # dvdy = +np.cos(img_rot.rad) * pix_scale
+
     dudx = -np.cos(img_rot.rad) * pix_scale
-    dudy = -np.sin(img_rot.rad) * pix_scale
+    dudy = +np.sin(img_rot.rad) * pix_scale
     dvdx = -np.sin(img_rot.rad) * pix_scale
-    dvdy = +np.cos(img_rot.rad) * pix_scale
+    dvdy = -np.cos(img_rot.rad) * pix_scale
 
     moscen = galsim.PositionD(x=xcen, y=ycen)
     sky_center = galsim.CelestialCoord(