How to define spline in solidworks

Step 1:

This is a very simple
the example curves drawn on planes

Step 2:

make dimensions the distance of points from each other and from the Centre of reference

Step 3:

then we can give your relationship vertical or horizontal, depending on what we need

Step 4:

then select the dimension and clicking on the arrow to the point of the curve, we can give the value of the length

Step 5:

Another way to define the account to which the arrow is a curve while the dimension, select the arrow

Step 6:

then mark the line the center of a horizontal/vertical passing through the Centre of the coordinate system

Step 7:

and then after we enter the value of the angle variance arrow to the point of the curve

Step 8:

or we make by selecting the arrow and in the properties panel finding, quoted below, we enter the value of the angle in mind that we enter values from 0 to 180 and from 0 to-180 if we wanted to approach it in a second page

Step 9:

a little bit differently, we will sketch in 3D when you draw a curve, click anoder the arrow and then we can give its relationships relative to the reference axis, for example, in relation to the axis X

Step 10:

or with relation to the axis Y

Step 11:

and with relation to the axis Z

Step 12:

in the axis of the curved the arc of the fold perpendicular to the direction of the draw

Step 13:

or we can used when you select the arrow to its properties and fold it into angles to the direction of its drawing

Step 14:

then at an angle perpendicular to the direction of the draw

Step 15:

in the sketch 3d we give the value of our arrows in the same way as the sketch plane

Step 16:

If you work with spline in solidworks, it is easier to achieve the intended goal of seeing the crest of curvature we can display it by right-clicking the viewing panel to help tools and selecting functions "show crest of curvature"

Step 17:

either in the properties panel on the left side of the screen specifying respectively pane with "show curvature"

Step 18:

then the Panel can make the scales and the density of the displayed features
so here's how easily and pleasantly we define the curves.

P.S: I'm very sorry for any mistakes in spelling
Success in creation of unusual projects ;-)