Draft Point: Difference between revisions

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Revision as of 20:40, 21 February 2020

Draft Point

Menu location
Draft → Point
Workbenches
Draft, Arch
Default shortcut
P T
Introduced in version
0.7
See also
Draft AddPoint, Draft Line, Draft Wire

Description

The Draft Point tool creates a simple point in the current work plane, handy to serve as reference for placing lines, wires, or other objects later. It uses the Draft Linestyle (only the color) set on the Draft Tray.

A single point placed on the working plane

Usage

  1. Press the Draft Point button, or press P then T keys.
  2. Click a point on the 3D view, or type a coordinate and press the add point button.

Options

  • To enter coordinates manually, simply enter the numbers, then press Enter between each X, Y and Z component. You can press the add point button when you have the desired values to insert the point.
  • Press T or click the checkbox to toggle continue mode. If continue mode is on, the point tool will restart after you place a point, allowing you to place another one without pressing the tool button again.
  • Press Esc or the Close button to abort the current command.

Properties

  • DataX: the X coordinate of the point.
  • DataY: the Y coordinate of the point.
  • DataZ: the Z coordinate of the point.

Scripting

See also: Draft API and FreeCAD Scripting Basics.

The Point tool can be used in macros and from the [[Python|]Python] console by using the following function:

Point = makePoint(X=0, Y=0, Z=0, color=None, name="Point", point_size=5)
Point = makePoint(point, Y=0, Z=0, color=None, name="Point", point_size=5)
  • Creates a Point object in the specified X, Y and Z coordinates, with units in millimeters. If no coordinates are given the point is created at the origin (0,0,0).
    • If X is a point defined by a FreeCAD.Vector, it is used.
  • color is a tuple (R, G, B) that indicates the color of the point in the RGB scale; each value in the tuple should be in the range from 0 to 1.
  • name is the name of the object.
  • point_size is the size of the object in pixels, if the graphical user interface is loaded.

Example:

import FreeCAD
import Draft

Point1 = Draft.makePoint(1600, 1400, 0)

p2 = FreeCAD.Vector(-3200, 1800, 0)
Point2 = Draft.makePoint(p2, color=(0.5, 0.3, 0.6), point_size=10)
FreeCAD.ActiveDocument.recompute()

Example:

This code creates N random points within a square of side 2L. It makes a loop creating N points, that may appear anywhere from -L to +L on both X and Y; it also chooses a random color and size for each point. Change N to change the number of points, and change L to change the area covered by the points.

import random
import FreeCAD
import Draft

L = 1000
centered = FreeCAD.Placement(FreeCAD.Vector(-L, -L, 0), FreeCAD.Rotation())
Rectangle = Draft.makeRectangle(2*L, 2*L, placement=centered)
N = 10

for i in range(N):
    x = 2*L*random.random() - L
    y = 2*L*random.random() - L
    z = 0
    r = random.random()
    g = random.random()
    b = random.random()
    size = 15*random.random() + 5
    Draft.makePoint(x, y, z, color=(r, g, b), point_size=size)

FreeCAD.ActiveDocument.recompute()