回答編集履歴
4
計算式の削除
answer
CHANGED
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@@ -1,60 +1,1 @@
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手計算したんだけど、double型にしないと精度が駄目でした。
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```c
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double Frame_Scene_Root[16]={
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1.000000,0.000000,0.000000,0.000000,
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0.000000,1.000000,0.000000,0.000000,
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0.000000,0.000000,1.000000,0.000000,
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0.000000,0.000000,0.000000,1.000000};
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double Frame_body[16]={
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1.278853,0.000000,-0.000000,0.000000,
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0.000000,0.000000,1.123165,0.000000,
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0.000000,-1.470235,0.000000,0.000000,
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0.135977,2.027985,133.967667,1.000000
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};
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double Frame[16]={
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1.000000,-0.000000,-0.000000,0.000000,
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-0.000000,1.000000,0.000000,0.000000,
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-0.000000,0.000000,1.000000,0.000000,
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-0.142114,0.000023,-49.556850,1.000000};
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いたらなかったため削除します。
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void Ranks( double *temp ,double* a, double *b)
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{
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temp[0]=a[0]*b[0]+a[1]*b[4]+a[2]*b[8]+a[3]*b[12];//ok
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temp[1]=a[0]*b[1]+a[1]*b[5]+a[2]*b[9]+a[3]*b[13];//ok
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temp[2]=a[0]*b[2]+a[1]*b[6]+a[2]*b[10]+a[3]*b[14];//ok
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temp[3]=a[0]*b[3]+a[1]*b[7]+a[2]*b[11]+a[3]*b[15];//ok
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temp[4]=a[4]*b[0]+a[5]*b[4]+a[6]*b[8]+a[7]*b[12];//ok
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temp[5]=a[4]*b[1]+a[5]*b[5]+a[6]*b[9]+a[7]*b[13];//ok
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temp[6]=a[4]*b[2]+a[5]*b[6]+a[6]*b[10]+a[7]*b[14];//ok
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temp[7]=a[4]*b[3]+a[5]*b[7]+a[6]*b[11]+a[7]*b[15];//ok
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temp[8]=a[8]*b[0]+a[9]*b[4]+a[10]*b[8]+a[11]*b[12];//0k
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temp[9]=a[8]*b[1]+a[9]*b[5]+a[10]*b[9]+a[11]*b[13];//0k
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temp[10]=a[8]*b[2]+a[9]*b[6]+a[10]*b[10]+a[11]*b[14];//0k
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temp[11]=a[8]*b[3]+a[9]*b[7]+a[10]*b[11]+a[11]*b[15];//0k
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temp[12]=a[12]*b[0]+a[13]*b[4]+a[14]*b[8]+a[15]*b[12];//0k
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temp[13]=a[12]*b[1]+a[13]*b[5]+a[14]*b[9]+a[15]*b[13];
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temp[14]=a[12]*b[2]+a[13]*b[6]+a[14]*b[10]+a[15]*b[14];
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temp[15]=a[12]*b[3]+a[13]*b[7]+a[14]*b[11]+a[15]*b[15];
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}
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Ranks(&temp[0],&Frame_Scene_Root[0],&Frame_body[0]);
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```
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ロジックがあってるかは別として書いてみたんだけどさ、
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Frame_Scene_Root[0]とFrame_body[0]がdouble型にできなかったんだが、元の値が変わってしまうのですがどうすべきでしょうか。どこかを、constすればいいのか教えてください
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3
double型にした
answer
CHANGED
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@@ -57,4 +57,4 @@
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```
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ロジックがあってるかは別として書いてみたんだけどさ、
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Frame_Scene_Root[0]とFrame_body[0]が
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60
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Frame_Scene_Root[0]とFrame_body[0]がdouble型にできなかったんだが、元の値が変わってしまうのですがどうすべきでしょうか。どこかを、constすればいいのか教えてください
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2
double型にした
answer
CHANGED
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@@ -1,12 +1,13 @@
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1
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手計算したんだけど、double型にしないと精度が駄目でした。
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1
2
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```c
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2
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-
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+
double Frame_Scene_Root[16]={
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1.000000,0.000000,0.000000,0.000000,
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0.000000,1.000000,0.000000,0.000000,
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0.000000,0.000000,1.000000,0.000000,
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0.000000,0.000000,0.000000,1.000000};
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double Frame_body[16]={
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1.278853,0.000000,-0.000000,0.000000,
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0.000000,0.000000,1.123165,0.000000,
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@@ -14,7 +15,7 @@
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0.135977,2.027985,133.967667,1.000000
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};
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-
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double Frame[16]={
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1.000000,-0.000000,-0.000000,0.000000,
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-0.000000,1.000000,0.000000,0.000000,
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@@ -22,9 +23,9 @@
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-0.142114,0.000023,-49.556850,1.000000};
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double temp[16];
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void Ranks(
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void Ranks( double *temp ,double* a, double *b)
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{
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temp[0]=a[0]*b[0]+a[1]*b[4]+a[2]*b[8]+a[3]*b[12];//ok
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temp[1]=a[0]*b[1]+a[1]*b[5]+a[2]*b[9]+a[3]*b[13];//ok
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1
文の改善
answer
CHANGED
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@@ -1,3 +1,4 @@
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1
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+
```c
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2
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float Frame_Scene_Root[16]={
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1.000000,0.000000,0.000000,0.000000,
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0.000000,1.000000,0.000000,0.000000,
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@@ -23,7 +24,7 @@
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float temp[16];
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void Ranks( float *temp ,float* a,float *b)
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void Ranks( float *temp ,float* a, float *b)
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{
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temp[0]=a[0]*b[0]+a[1]*b[4]+a[2]*b[8]+a[3]*b[12];//ok
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temp[1]=a[0]*b[1]+a[1]*b[5]+a[2]*b[9]+a[3]*b[13];//ok
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@@ -50,5 +51,9 @@
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Ranks(&temp[0],&Frame_Scene_Root[0],&Frame_body[0]);
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+
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55
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+
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56
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```
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57
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+
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53
58
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ロジックがあってるかは別として書いてみたんだけどさ、
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54
59
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Frame_Scene_Root[0]とFrame_body[0]がfloat型にできなかったんだが、元の値が変わってしまうのですがどうすべきでしょうか。どこかを、constすればいいのか教えてください
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