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Tool transformation not plotted #344

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@eliaslochner

Description

@eliaslochner

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Common issues

Describe the bug
When creating a DH robot model with a tool transformation like e.g. the Panda robot, the tool transformation is not considered in the print command or the plot command.

Version information
Installed version 1.0.3 using PyPi

To Reproduce

import roboticstoolbox as rtb

panda = rtb.models.DH.Panda()
print(panda)
panda.plot(panda.qr)

Expected behavior

┌─────┬──────┐
│tool │ The transformation... │
└─────┴──────┘

The plot shows the actual TCP coordinate system

Screenshots

DHRobot: Panda (by Franka Emika), 7 joints (RRRRRRR), dynamics, geometry, modified DH parameters
┌────────┬────────┬─────┬───────┬─────────┬────────┐
│ aⱼ₋₁   │  ⍺ⱼ₋₁  │ θⱼ  │  dⱼ   │   q⁻    │   q⁺   │
├────────┼────────┼─────┼───────┼─────────┼────────┤
│    0.0 │   0.0° │  q1 │ 0.333 │ -166.0° │ 166.0° │
│    0.0 │ -90.0° │  q2 │   0.0 │ -101.0° │ 101.0° │
│    0.0 │  90.0° │  q3 │ 0.316 │ -166.0° │ 166.0° │
│ 0.0825 │  90.0° │  q4 │   0.0 │ -176.0° │  -4.0° │
│-0.0825 │ -90.0° │  q5 │ 0.384 │ -166.0° │ 166.0° │
│    0.0 │  90.0° │  q6 │   0.0 │   -1.0° │ 215.0° │
│  0.088 │  90.0° │  q7 │ 0.107 │ -166.0° │ 166.0° │
└────────┴────────┴─────┴───────┴─────────┴────────┘
┌─────┬──────┐
│tool │ None │
└─────┴──────┘
┌─────┬─────┬────────┬─────┬───────┬─────┬───────┬──────┐
│name │ q0  │ q1     │ q2  │ q3    │ q4  │ q5    │ q6   │
├─────┼─────┼────────┼─────┼───────┼─────┼───────┼──────┤
│  qr │  0° │ -17.2° │  0° │ -126° │  0° │  115° │  45° │
│  qz │  0° │  0°    │  0° │  0°   │  0° │  0°   │  0°  │
└─────┴─────┴────────┴─────┴───────┴─────┴───────┴──────┘

image
The TCP is at the last joint coordinate system instead.

Environment (please complete the following information):

  • Your OS: Linux
  • Your Python version: 3.8

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    bugwe got it wrong, will fixfor next releaseThis fix will be included in the next release

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