What is a point? Types and styles of points, use and working of points in AutoCAD 2014

 What is a point? Types and styles of points, use and working of points in AutoCAD...., full detailed description about a point..., Use of DDPTYPE command

A point (Definition):-

A point may be defined as a beginning or ending of any element. It is also called “node”, even node is a point where two or more lines or segments are connecting to each other. Two points make a line and more than two points make a polygon joining together. Co-ordinate system cannot be considered without a point, because a point is the starting for any segment. 

Types of point:-

These types of points are available for drafting. These are defined as below:

First Point: It is defined as a starting of any structure design. Firstly the point which is appointed to start the segment is called as “First Point”. For example we want to draw a line then we’ve to first appoint a reference point from which the segment or element will be drawn. This point is First Point.

Second Point: From which the segment go through the point is termed as “Second Point”. It is not required if not known against other parameters. It makes the drawing easy. For instance an arc is to be drawn in a drawing then firstly first point should be appointed then second point should pointed out if possible otherwise arc can be drawn by the other known parameters. From the second point if a curve is to be drawn curvic corners will be drawn and make the shape of curve very smoothly. If we discuss about the making process for a circle, a two point circle is required for the second point.

Next Point: it is the point coming after and after the previous point. For example we are making a drawing consists of a great number of lines joining lines continuously means that the ending point of first line is connected to the starting point, then we will not take line or also can say we will not enter the command for drawing the line again and again. So we take a line once and draw our design without coming out from the command and we will draw a continuous line and we will specify other and all other points. These other points are called as “Next Points”.

Center Point: Center point is defined as a point used basically for the circle related components. If the center point of a circle is attached to any circumference point, radius of circle is obtained. So the point from which the circle is made having some radius is termed as “Center Point” of that circle. An arc has also a center point and for it the center point is the center of the circle from which the arc is prepared.

End Point: For the drawing of a line second point may be called as the end point if the line is drawn by only two points. End point is basically the point where a segment is stopped to go. If a closed loop is made the first point would be the end point provided that the loop is made by line segment or arc etc... Actually end point is the last or final point where our structural element ends. While drawing an arc by First End Radius method, First End Direction method or First End Angle method is the clear example for the end point because it required first point then end point and when end point of the arc is appointed direction or angle or radius of the circle through which the arc is cut out is to be specified.

Mid Point:  Mid point is the point that intersects any line segment into two equal parts. The line segment may be of linear and also a curve or an arc. If Object Snap is ON (Mid Point must be checked ON) in AutoCAD midpoint of the segment is shown automatically. Mid Point of the line or of an arc has it’s differ symbol than first point, end point and center point to indicate itself. 

Tangent Point: It is the point that indicates the tangent to any point on the circle. Tangent on a point means the line that make an angle of 90 degrees to the line that connects that point to the center of the circle.

Perpendicular Point: The point that shows the 90 degrees angle between two lines as called as Perpendicular Point. It is not necessary that the point should be in the center of line, but the point may be anywhere upon the line and the other line must make 90 degrees angle.

Nearest Point: It is the point that indicates the nearest stage to draw the next point for an appointment. For instance two lines are cutting a line vertically and we have to draw a line from a different point to the point between the intersectional points of those two lines then the next point on the lying line will show the nearest path to draw.

Styles or designs of a point: Many different types of symbols are used to indicate the points. For example the point may be look like a hollow circle, a fill circle, a circle having two cross sectional lines or may be a simple point. The style for end point looks like a rectangle while center point has a circle type style whereas midpoint indicates itself by a triangle like symbol. The indication of Tangent point looks like a line is over the circle and nearest point shows its design as two triangles joined with one vertices over one another. An intersection shows design like X means intersection of two lines. Perpendicular point looks like a vertical line is standing over the midpoint of a horizontal line. Some other symbols are-

  

How to change Point style in AutoCAD?

Type DDPTYPE in the command bar and press enter, the above type of Point Style Dialog Box will open, now select your desired point style and go on your work.

You can also change point style using menu options. Go to Format Menu then click on fourteenth option Point Style the same dialog box will open. This option will change the styles of all the points have been pointed on the maximize viewport (black screen).

Use of Points:

Points are used as reference for any structure. It is also used as for indications to draw the other objects. For Signification of any position anywhere points are used.