Hatch pattern settings (.htc) for automatic drawing hatches

The hatch patterns defined in schema files are used when you set Type to Automatic on the Fill page in the part or shape properties.

Hatch schema file name and location

The name of the schema file Tekla Structures uses for each drawing type is defined in the Hatching category of the Advanced options dialog box:

XS_DRAWING_GA_HATCH_SCHEMA=general.htc
XS_DRAWING_ASSEMBLY_HATCH_SCHEMA=assembly.htc
XS_DRAWING_SINGLE_PART_HATCH_SCHEMA=single.htc
XS_DRAWING_CAST_UNIT_HATCH_SCHEMA=cast_unit.htc

The default schema files are located in the ..\Tekla Structures\<version>\environments\common\system folder. The environment-specific schema files are located under the environments. The exact file location may vary depending on the folder structure of you environment files.

Schema file syntax

Material type, Cast unit type, Material name, Hatch name, Scale, Color, Automatic scaling and rotation

Examples:

CONCRETE,,hardware_SOLID,,120 (gray shade)

CONCRETE,Precast,C25/30,CONC,0.3,1("traditional" concrete Precast)

CONCRETE,CIP,C25/30,CONCRE,0.3,1 ("traditional" concrete CIP)

CONCRETE,,CROSS,2,1(small crosses)

MISCELLANEOUS,Insulation,HARD_INS1,1,,1 (straight lines)

MISCELLANEOUS,Insulation,SOFT_INS,1,,1 (rounded lines)

MISCELLANEOUS,Insulation,SOFT_INS2,1,,1 (completely round)


Option	Description
`Material type`	`STEEL, CONCRETE, TIMBER, MISCELLANEOUS` (case sensitive)
`Cast unit type`	`Precast` or `CIP`. You also need to define the cast unit type for concrete parts in part properties.
`Material name`	The material name defined for the part in part properties in the model. The character limit for the material name is 32 characters.
`Hatch name`	To check the hatch pattern names and related hatch patterns go to the Fill tab in Part properties, select a hatch pattern from the Type list and click the ... button next to the list. Then click a pattern to see its name in the Type list. The selected hatch pattern is marked with a red frame. Hatch names are case sensitive. If you do not want to use any hatch pattern for a material, leave the hatch name field blank in the schema file.
`Color`	BLACK: 0 (default) WHITE: 1 RED: 2 GREEN: 3 BLUE: 4 CYAN: 5 YELLOW: 6 MAGENTA: 7 Special: 120 (use this color for gray shade) GRAYSCALE 1: 130 GRAYSCALE 2: 131 GRAYSCALE 3: 132 GRAYSCALE 4: 133 The hatch color defines the line width for the printer. If you do not define a color for a hatch in the schema file, Tekla Structures uses the default color black (0). To use the special color that is printed as color or grayscale, depending on the selected printer settings, set the color number in the .htc file to 120. To adjust the gray shade for Special color 120, use the following advanced options: XS_HATCH_SPECIAL_COLOR_R XS_HATCH_SPECIAL_COLOR_G XS_HATCH_SPECIAL_COLOR_B
`Scale`	Scale is a numeric value that Tekla Structures uses to scale hatches.
`Automatic scaling and rotation`	Automatic scaling and rotation defines whether you want to use automatic scaling and rotation. TRUE: 1 FALSE: 0 (default) Automatic scaling and rotation requires additional processing, so use it only when necessary.

Example of the cast_unit.htc file:

/**************************************/
/* Tekla Structures hatch schema file */
/**************************************/

/******************************************************************************************************

	Purpose
	-------
	This file is used to define the hatch patterns for different materials for
	Tekla Structures automatic hatching functionality. These settings will be used
	when the hatching option is set to "Automatic" in the drawing.

	Syntax
	-------
	Material Type, Cast unit type, Material Name, Hatch name, Scale, Color, Automatic scaling and rotation

	Available options
	-----------------
	Material Type:
	STEEL
	CONCRETE
	TIMBER
	MISCELLANEOUS

    Cast unit type:
	CIP
	Precast

	Colors:
	BLACK      	0 (default)
	WHITE      	1 
	RED        	2
	GREEN      	3 
	BLUE       	4 
	CYAN       	5 
	YELLOW     	6
	MAGENTA    	7
    Special    	   120 (use this color for gray shade)
	GRAYSCALE 1	130
	GRAYSCALE 2	131
	GRAYSCALE 3	132
	GRAYSCALE 4	133
	
	Automatic scaling and rotation:
	TRUE	   1
	FALSE	  0 (default)

	Instructions for use
	--------------------
	- material and hatch names are case sensitive
	- automatic scaling and rotation option requires additional processing, so use it only when necessary
	- to adjust the gray shade for Special color 120, use the variables
	  XS_HATCH_SPECIAL_COLOR_R
	  XS_HATCH_SPECIAL_COLOR_G
	  XS_HATCH_SPECIAL_COLOR_B

	Examples
	--------
	CONCRETE,,hardware_SOLID,,120			(gray shade)
	CONCRETE,Precast,C25/30,CONC,0.3,1 		 ("traditional" concrete Precast)
	CONCRETE,CIP,C25/30,CONCRE,0.3,1 		   ("traditional" concrete CIP)
	CONCRETE,,CROSS,2,1 			 	 (small crosses)
	MISCELLANEOUS,Insulation,HARD_INS1,1,,1    	(straight lines)
	MISCELLANEOUS,Insulation,SOFT_INS,1,,1     	(rounded lines)
	MISCELLANEOUS,Insulation,SOFT_INS2,1,,1    	(completely round)

******************************************************************************************************/