# PROJ3D: Project 3D In RFOC: Graphics for Spherical Distributions and Earthquake Focal Mechanisms

## Description

Project a 3D body after rotation and translation

## Usage

 ```1 2``` ```PROJ3D(aglyph, M = diag(1, nrow = 4), M2 = diag(1, nrow = 4), anorms = list(), zee = c(0, 0, 1)) ```

## Arguments

 `aglyph` glyph structure `M` rotation matrix `M2` rotation matrix `anorms` normals to structure `zee` Up direction of body

## Details

This function takes a 3D body, rotates it and projects it for plotting. An example glyph is found in Z3Darrow.

## Value

Glyph structure

 `x,y,z` coordinates of rotated body faces `xp` rotated normal vectors `zd` depth mean value of each face

## Author(s)

Jonathan M. Lees<jonathan.lees@unc.edu>

## See Also

makeblock3D, ROTZ, ROTY, ROTX, BOXarrows3D, Z3Darrow, TRANmat

## Examples

 ``` 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21``` ``` block1 = matrix(c(0,0,0, 1,0,0, 1,0.5,0, 0,0.5,0, 0,0,-2, 1,0,-2, 1,0.5,-2, 0,0.5,-2), byrow=TRUE, ncol=3) Bblock1 = makeblock3D(block1) R3 = ROTX(-40) R2 = ROTY(0) R1 = ROTZ(20) T = TRANmat(.1, 0, 0 ) M = R1 %*% R2 %*% R3 %*% T T2 = TRANmat(1, 0.5, 0 ) MT = T2 %*% R1 %*% R2 %*% R3 %*% T Z1 = PROJ3D(Bblock1\$aglyph, M=MT, anorms=Bblock1\$anorm , zee=c(0,0,1)) ```

RFOC documentation built on May 2, 2019, 1:38 p.m.