Changes between Version 10 and Version 11 of Shape/ExternalData

Timestamp:

06/16/15 13:10:41 (10 years ago)

Author:

madams

Comment:

—

Shape/ExternalData

@@ -1 +1 @@
 > Under construction
 = Visualizing External Data in Shape =
+
+[[PageOutline]]
 
 As we know very well, AstroBEAR generates simulations in HDF5 (Hierarchical Data Format), i.e. Chombo, files. As far as we know Shape has not yet been developed to import HDF5. Currently it accepts ASCII files. Therefore the simulations you want to visualize will need to be in ASCII form. 
@@ -13 +15 @@
 
 * [https://www.youtube.com/watch?v=ckfQ2RBQ7NI Shape Developers' YouTube Tutorial on External Data Visualization]
+
+
+----
+
+In this tutorial in visualizing external data in Shape, we will be visualizing a sphere generated by the following script:
+
+[[CollapsibleStart(Pseudo-Data Generator (python))]]
+{{{
+import random
+from math import pi,sin,cos
+
+#Creating Sphere Dataz                                                                                                         
+def createSphere(r=5, N=100):
+    lst = []
+    for phi in [(pi*i)/(N-1) for i in range(N)]:
+        M = int(sin(phi)*(N-1))+1
+        for theta in [(2*pi*i)/M for i in range(M)]:
+            x = r * sin(phi) * cos(theta)
+            y = r * sin(phi) * sin(theta)
+            z = r * cos(phi)
+            lst.append((x, y, z))
+    return lst
+
+#Opens/creates new ascii file                                                                                                  
+outfile = open("test_sphere_7col.dat", "w")
+
+#Writes the data to the file                                                                                                   
+for x,y,z in createSphere():
+    rho = random.random()*1000000
+    vx = random.random()*10
+    vy = random.random()*100
+    vz = random.random()                                                                                                      
+    print("{0}\t{1}\t{2}\t{3}\t{4}\t{5}\t{6}".format(x,y,z,vx,vy,vz,rho), file=outfile)
+
+#Closes the file                                                                                                               
+outfile.close()
+}}}
+[[CollapsibleEnd]]
+
+a file generated by the script can be found in the attachments, titled ''test_sphere_7col.dat''. In the following sections you'll observe how we come to visualize its "emission map." We suggest downloading the attachment and following along with the tutorial.
 
 == Before Starting ==