Vectr is a free graphics software used to create vector graphics easily and intuitively. It's a simple yet powerful web and desktop cross-platform tool to bring your designs into reality. Low Learning Curve Quick to Learn, Easy to Use. Get started immediately without the massive learning curve. Vectr’s intuitive tools let you. Oblique drawing is an easy method for creating quick pictorials (Figure 3.55). In most oblique sketches, circles and angles parallel to the projection plane are true size and shape and are therefore easy to construct. Although circular shapes are easy to sketch in the front oblique plane, they would appear elliptical in the top or sides. Peachpit Press - Creating Graphics with Sketch English.FLV aac, 44100 Hz, stereo h264, yuv420p, 1280x720, 30.00 fps(r) 791MB Genre: E-learning Learn to use. Professional templates and function-focused resources make it simple to create collages, social media graphics, posters, cards, banners, images and much more. With only a few clicks, anyone can edit professional artworks, even without any experience.
Before you can draw lines and shapes, render text, or display and manipulate images with GDI+, you need to create a Graphics object. The Graphics object represents a GDI+ drawing surface, and is the object that is used to create graphical images.
There are two steps in working with graphics:
Creating a Graphics object.
Using the Graphics object to draw lines and shapes, render text, or display and manipulate images.
Creating a Graphics Object
A graphics object can be created in a variety of ways.
To create a graphics object
Receive a reference to a graphics object as part of the PaintEventArgs in the Paint event of a form or control. This is usually how you obtain a reference to a graphics object when creating painting code for a control. Similarly, you can also obtain a graphics object as a property of the PrintPageEventArgs when handling the PrintPage event for a PrintDocument.
-or-
Call the CreateGraphics method of a control or form to obtain a reference to a Graphics object that represents the drawing surface of that control or form. Use this method if you want to draw on a form or control that already exists.
-or-
Create a Graphics object from any object that inherits from Image. This approach is useful when you want to alter an already existing image.
The following sections give details about each of these processes.
PaintEventArgs in the Paint Event Handler
When programming the PaintEventHandler for controls or the PrintPage for a PrintDocument, a graphics object is provided as one of the properties of PaintEventArgs or PrintPageEventArgs.
To obtain a reference to a Graphics object from the PaintEventArgs in the Paint event
Declare the Graphics object.
Assign the variable to refer to the Graphics object passed as part of the PaintEventArgs.
Insert code to paint the form or control.
The following example shows how to reference a Graphics object from the PaintEventArgs in the Paint event:
Peachpit Creating Graphics With Sketch Shapes
CreateGraphics Method
Onyx 3 3 9 – maintenance and optimization tool kit. You can also use the CreateGraphics method of a control or form to obtain a reference to a Graphics object that represents the drawing surface of that control or form.
To create a Graphics object with the CreateGraphics method
Call the CreateGraphics method of the form or control upon which you want to render graphics. Feeder 3 3 5 2.
Create from an Image Object
Additionally, you can create a graphics object from any object that derives from the Image class.
To create a Graphics object from an Image
Call the Graphics.FromImage method, supplying the name of the Image variable from which you want to create a Graphics object. Hype pro 3 6 8 release.
The following example shows how to use a Bitmap object:
Note
You can only create Graphics objects from nonindexed .bmp files, such as 16-bit, 24-bit, and 32-bit .bmp files. Each pixel of nonindexed .bmp files holds a color, in contrast to pixels of indexed .bmp files, which hold an index to a color table.
Drawing and Manipulating Shapes and Images
After it is created, a Graphics object may be used to draw lines and shapes, render text, or display and manipulate images. The principal objects that are used with the Graphics object are:
The Pen class—Used for drawing lines, outlining shapes, or rendering other geometric representations.
The Brush class—Used for filling areas of graphics, such as filled shapes, images, or text.
The Font class—Provides a description of what shapes to use when rendering text.
The Color structure—Represents the different colors to display.
To use the Graphics object you have created
Work with the appropriate object listed above to draw what you need.
For more information, see the following topics:
To render
See
Lines
How to: Draw a Line on a Windows Form
Shapes
How to: Draw an Outlined Shape
Text
How to: Draw Text on a Windows Form
Images
How to: Render Images with GDI+
See also
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3.23 Oblique Sketches
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This chapter is from the book
Modern Graphics Communication, 5th Edition
This chapter is from the book
This chapter is from the book
3.23 Oblique Sketches
Peachpit Creating Graphics With Sketch Software
Oblique drawing is an easy method for creating quick pictorials (Figure 3.55). In most oblique sketches, circles and angles parallel to the projection plane are true size and shape and are therefore easy to construct. Although circular shapes are easy to sketch in the front oblique plane, they would appear elliptical in the top or sides. Oblique views are primarily a sketching technique used when the majority of circular shapes appear in the front view or when the object can be rotated to position circles in the front view.
3.55 Oblique Projection Theory
CAD is not typically used to create oblique views because better-appearing isometric or perspective drawings can be created easily from 3D CAD models.
Appearance of Oblique Drawings
Three things affect the appearance of your oblique sketch:
The surface of the object you choose to show parallel to the projection plane
The angle and orientation you choose for the receding lines that depict the object’s depth
The scale you choose for the receding lines depicting the object’s depth (Figure 3.56)
Meat Cereals. Oblique sketching shows the front surface parallel to the view, making these meat cereal boxes easy to draw. (Courtesy of Randall Munroe.)
Choosing the Front Surface
Think about which surface of the object would be the best one to think of as parallel to the plane of projection. For example, a cube has six different surfaces. As you are creating your sketch, any of those six surfaces could be oriented as the “front” of the part. Of course, with a cube it wouldn’t matter which one you chose. But a cube with a hole through it will make a much better oblique sketch when the round hole is oriented parallel to the projection plane.
Angle of Receding Lines
An angle of 45° is often chosen for the angle of the receding lines because it makes oblique sketches quick and easy. You can use graph paper and draw the angled lines through the diagonals of the grid boxes. An angle of 30° is also a popular choice. It can look more realistic at times. Any angle can be used, but 45° is typical. As shown in Figure 3.57, you can produce different oblique drawings by choosing different directions for the receding lines.