From dee0cd0168789cdeb0cf8d360b52a4ce24464f55 Mon Sep 17 00:00:00 2001
From: ousttrue <ousttrue@gmail.com>
Date: Thu, 29 Sep 2011 09:56:47 +0900
Subject: [PATCH] implement bb

---
 examples/opengl/rokuro.py      | 25 ++++++++++++++++++++-----
 examples/opengl/vertexarray.py | 32 ++++++++++++++++++++++++++++++++
 examples/pmdbuilder.py         |  1 +
 examples/pymeshviewer.py       |  4 +++-
 4 files changed, 56 insertions(+), 6 deletions(-)

diff --git a/examples/opengl/rokuro.py b/examples/opengl/rokuro.py
index 4871292..8bacfc2 100644
--- a/examples/opengl/rokuro.py
+++ b/examples/opengl/rokuro.py
@@ -1,19 +1,21 @@
 #!/usr/bin/python
 # coding: utf-8
 
+import math
 from OpenGL.GL import *
 from OpenGL.GLU import *
 
 from . import baseview
 
 class RokuroView(baseview.BaseView):
-    def __init__(self, distance):
+    def __init__(self):
         super(RokuroView, self).__init__()
         self.w=1
         self.h=1
         self.head=0
         self.pitch=0
-        self.distance=distance
+        self.SHIFT_FACTOR=0.001
+        self.distance=100
         self.shiftX=0
         self.shiftY=0
         self.aspect=1
@@ -31,9 +33,8 @@ class RokuroView(baseview.BaseView):
             self.distance*=0.9
 
     def shift(self, dx, dy):
-        FACTOR=0.001
-        self.shiftX+=dx * self.distance * FACTOR
-        self.shiftY+=dy * self.distance * FACTOR
+        self.shiftX+=dx * self.distance * self.SHIFT_FACTOR
+        self.shiftY+=dy * self.distance * self.SHIFT_FACTOR
 
     def rotate(self, head, pitch):
         self.head+=head
@@ -67,3 +68,17 @@ class RokuroView(baseview.BaseView):
             self.dolly(d)
             return True
 
+    def look_bb(self, min_v, max_v):
+        w=max_v[0]-min_v[0]
+        h=max_v[1]-min_v[1]
+        long_side=max(w, h)
+        def deglee_to_radian(deglee):
+            return math.pi*deglee/180.0
+        d=long_side/math.tan(deglee_to_radian(30)) * 1.5
+        self.distance=min_v[2]+d
+        cx=min_v[0]+max_v[0]
+        cy=min_v[1]+max_v[1]
+        print(cx, cy)
+        self.shiftX=-cx/2.0
+        self.shiftY=-cy/2.0
+
diff --git a/examples/opengl/vertexarray.py b/examples/opengl/vertexarray.py
index 1c3b502..c1d758e 100644
--- a/examples/opengl/vertexarray.py
+++ b/examples/opengl/vertexarray.py
@@ -123,3 +123,35 @@ class IndexedVertexArray(object):
         self.vertices=numpy.array(self.vertices, 'f') 
         self.uvlist=numpy.array(self.uvlist, 'f') 
 
+    def get_boundingbox(self):
+        vertices_size=len(self.vertices)
+        if(vertices_size==0):
+            return ([0, 0, 0], [0, 0, 0])
+        print('vertices_size %d' % vertices_size)
+        print(self.vertices[0])
+        def vertex_gen_factory():
+            for i in range(0, vertices_size, 4):
+                yield [
+                        self.vertices[i],
+                        self.vertices[i+1],
+                        self.vertices[i+2]
+                        ]
+        vertex_gen=vertex_gen_factory()
+        v=next(vertex_gen)
+        max_v=v[:]
+        min_v=v[:]
+        for v in vertex_gen:
+            if v[0]<min_v[0]:
+                min_v[0]=v[0]
+            if v[1]<min_v[1]:
+                min_v[1]=v[1]
+            if v[2]<min_v[2]:
+                min_v[2]=v[2]
+            if v[0]>max_v[0]:
+                max_v[0]=v[0]
+            if v[1]>max_v[1]:
+                max_v[1]=v[1]
+            if v[2]>max_v[2]:
+                max_v[2]=v[2]
+        return (min_v, max_v)
+
diff --git a/examples/pmdbuilder.py b/examples/pmdbuilder.py
index 96feccb..c758e34 100644
--- a/examples/pmdbuilder.py
+++ b/examples/pmdbuilder.py
@@ -16,6 +16,7 @@ def build(path):
     if not io.read(path):
         return
     print(time.time()-t, "sec")
+    print(io)
     # build
     basedir=os.path.dirname(path)
     indexedVertexArray=opengl.vertexarray.IndexedVertexArray()
diff --git a/examples/pymeshviewer.py b/examples/pymeshviewer.py
index 491433b..f617d2a 100644
--- a/examples/pymeshviewer.py
+++ b/examples/pymeshviewer.py
@@ -27,7 +27,8 @@ class Frame(tkinter.Frame):
         menu_file.add_command(label='Open', under=0, command=self.onOpen)
 
         # setup opengl widget
-        self.glworld=opengl.BaseController(opengl.rokuro.RokuroView(500))
+        self.view=opengl.rokuro.RokuroView()
+        self.glworld=opengl.BaseController(self.view)
         self.glwidget=togl.Widget(self, self.glworld, width=width, height=height)
         self.glwidget.pack(fill=tkinter.BOTH, expand=True)
 
@@ -50,6 +51,7 @@ class Frame(tkinter.Frame):
             return
         self.glworld.setRoot(model)
         print('load %s' % path)
+        self.view.look_bb(*model.get_boundingbox())
         self.glwidget.onDraw()
 
     def loadModel(self, path):
-- 
2.11.0