Operation Manual

Supported file formats | 651
To export an HPGL Plotter file
1
Click File Export.
2 Locate the folder where you want to store the file.
3 Choose PLT - HPGL Plotter File from the Save as type list box.
4 Type a filename in the File name list box.
5 Click Export.
6 In the HPGL export dialog box, adjust any of the settings.
HPGL Plotter (PLT) technical notes
Importing a PLT file
• Corel programs support versions 1 and 2 of PLT file formats although some features of version 2 are not supported.
• You can import images larger than the Corel program’s maximum page size by enabling the Scale option in the HPGL options dialog
box, which lets you resize the imported image.
• The curve resolution factor can be set to a value between 0.0001 and 1.0 inch. The value can be very precise; up to eight decimal places
are accepted. A setting of 0.0001 results in the highest resolution, but it also greatly increases file size. A curve resolution of 0.004 inch
is recommended.
• The PLT file format does not contain color information. Instead, the various objects in a PLT file have certain pen numbers associated
with them. When imported into a Corel program, each pen number is assigned a specific color. You can specify the color assigned to a
particular pen, so that you can match the original colors of the graphic.
• The Pen selection list contains 256 pens, although not all of the pens may be assigned. You can change the color assignments by
choosing the pen and then choosing a new color for that pen from the Pen color list box. Choosing Custom colors brings up a color
definition dialog box that allows you to define a custom color according to RGB values.
• You can change the pen width assignments by choosing the pen and then choosing a new width for that pen from the Pen width list
box.
• You can change the pen velocity by choosing the pen and then choosing a new velocity for that pen from the Pen velocity list box. This
is useful only for exporting PLT files.
• You can set a defined pen to the Unused option. You can also reset the current Pen Library pen settings to the previously saved settings.
• Corel programs support numerous dotted, dashed, and solid line types of the PLT file format. The pattern number of a line in a PLT file is
translated to a line type pattern.
• If the PLT file contains a font that is not on the user’s computer, the PANOSE font matching dialog box lets the user replace the font
with an available one.
Exporting a PLT file
• In Corel DESIGNER X7, you have the option of setting the Plotter origin to Top left.
• Only the outlines of objects are exported to the PLT file format.
• Dotted lines, dashed lines, and arrowheads are mapped to standard line types of the PLT file format.
• Bézier curves are converted to line segments.
• Outline thickness and calligraphic settings are lost.
• Outline colors are limited to eight: black, blue, red, green, magenta, yellow, cyan, and brown.
Portable Network Graphics (PNG)
The Portable Network Graphics (PNG) file format is an excellent file format for lossless, portable, and well-compressed storage of bitmaps.
It takes up a minimum amount of disk space and can be easily read and exchanged between computers. The Portable Network Graphics
format provides a replacement for the GIF format and can also replace many common uses of the TIFF format.
The Portable Network Graphics format is designed to work well in online viewing, such as on the web, and it’s fully streamable with a
progressive display option. Some web browsers do not support all formatting and features. You can export images to the Portable Network
Graphics file format if you want to use transparent backgrounds, image interlacing, image maps, or animation in your webpages.