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Revision as of 11:08, 15 October 2014

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Grids Specification

Overlay lines, rectangles and layout information.

app-viewer_grids1

app-viewer_grids2

 

dv_note

The HUD specification also use Grid files (.grids) but with a location set as per the general.prefs monitorHeadUpDisplayDir parameter.

File Specification

A grids file must end in the extension '.grids', e.g. test.grids
It should be a plain text file

 

Each specification file specifies one or more grids, each identified by unique name (a name parameter).

Format

The grid file format is as follows :

 

monitorGrids 1.0 -1

{

 monitorGrid 1.0 -1

 {

   <grid specification>

 }

 monitorGrid 1.0 -1

 {

   <grid specification>

 }

 ...

}

 

The grid specification section is described below.

 

NOTE

 

Grid specification lines must end with a semi-colon ";" character.
A '#' character at line start delimits a comment. Rest of line is ignored.
Strings should be quoted i.e. "string".
There should be a space between each identifier and before the terminating semi-colon.

Grid Specification

The following identifiers are used.

name

name "<STRING>" ;

 

This is the name of the grid as shown in the GUI drop-down list.

Grid names should be unique.

units

units "<UNITS>" ;

 

where UNITS are :

 

pixels

By default the coordinate system is absolute image pixels, lower left to top right.

Elements are drawn relative to the lower left corner of a pixel.

normalised

Normalised coordinates map the range 0.0..1.0 to the monitor source full image pixel size in x and y.

unitsImageAspect

unitsImageAspect <FLOAT> ;

 

The normalised region may be mapped to an image aspect extraction of the monitor source full image (pre or post monitor mask).

 

This is achieved by specifying the target image aspect. Given the monitor source image and aspect ratio, the normalised region will automatically be adjusted for 'letterbox' or 'pillarbox' display of the target aspect ratio.

unitsObeyMask

unitsObeyMask <INT> ;

 

where INT can be 0 or 1.

 

The normalised region may be mapped to the visible (post monitor mask) image pixel size in x and y.

line

line <FLOAT x0> <FLOAT y0> <FLOAT x1> <FLOAT y1>;

 

Draws a line from coordinates x0,y0 to coordinates x1,y1 using the current coordinate system and draw style.

lineWeight

lineWeight <FLOAT> ;

 

How wide to draw lines, in pixels.

ellipse

ellipse <INT x0> <INT y0> <INT Rx> <INT Ry> ;

 

where Rx is X radius and Ry is Y radius.

 

Draws an ellipse with centre at coordinates (x0,y0) and size 2*Rx by 2*Ry, using the current coordinate system and draw style.

polygon

polygon <INT x0> <INT y0> .. <INT xN> <INT yN> ;

 

Draws a multi-point polygon from (x0,y0) to (x1,y1) to .. (xN,yN), using the current coordinate system and draw style. If the draw style is filled and the polygon is convex, it will be filled on the inside.

rectExtraction

rectExtraction <INT x0> <INT y0> <INT x1> <INT y1> ;

 

Draws a rectangle from (x0,y0) to (x1,y1) using the current coordinate system and draw style.

 

If the draw style is filled the rectangle will be filled on the outside, up to the outer limit of the monitor source image. This element is intended for use when a solid or semi-transparent 'masking' or 'blanking' region is required.

 

If the draw style is not filled, an open rectangle will be drawn with the current line style.

text

text <INT x> <INT y> "<STRING>" ;

 

Draws the specified string at (x,y) using the current coordinate system and draw style.

 

Note that you can use text macros, which will be expanded on display. See below.

textSize

textSize <FLOAT> ;

 

Set the size of text drawn.

color

color <FLOAT R> <FLOAT G> <FLOAT B> <FLOAT A> ;

 

Set the color (Red Green Blue Alpha) for drawing.

fill

fill "<FILL>" ;

 

where FILL is solid or open.

 

Set the fill mode.

anchor

anchor "<VERT>" "<HORIZ>" ;

 

where :

 

String

Values

VERT

bottom, middle , top

HORIZ

left, center , right

 

This defines the horizontal and vertical positioning for :

 

text elements
image elements

image

image <INT x> <INT y> "<PATH>" ;

 

where PATH is full path to image file.

 

Draw specified image at (x,y) using the current coordinate system and draw style.

 

dv_note

Images should be in PNG format. The image path can be relative (to specification file) or given as an absolute path.

origin

origin "<VERT>" "<HORIZ>" ;

 

where :

 

String

Values

VERT

bottom , top

HORIZ

left , right

 

Define the coordinate origin for all drawing operations.

Macro Expansion

Macros are available for use with the text operator and will be expanded to the associated information.

Macro Format

To specify a macro, use a text element e.g.

 

text 20 50 "Name:  ##srcName" ;

text 220 80 "Frame: ##recTimeFrames" ;

Available Macros

Macro Text

Meaning

Source Information

##srcTime

Source time (auto-set from project)

##srcTimeFrames

Source time in frames

##srcTimeTimecode

Source time as timecode

##srcKeycode

Source time as keycode (if available)

##srcTape

Tape name

##srcFilm

Film name

##srcClip

Clip name

##srcScene

Scene name

##srcName

Material Name

##srcDescription

Description

##srcLocation

Location (path on disk)

Record Information

##recTime

Record time (auto-set from project)

##recTimeFrames

Record time in frames

##recTimeTimecode

Record time as timecode

##segmentVersion

Version number of segment

Audio Information

##audioName

Audio material name

##audioOriginator

Audio originator/creator (e.g. Pro Tools)

##audioTimecode

Audio timecode

##audioTimeFrames

Audio timecode as frames

##audioReference

Audio reference as per originator

##audioChannels

Number of audio channels

##audioSampleRate

Sample rate of audio

Miscellaneous

##headLength

Length of segment head in frames

##tailLength

Length of segment tail in frames

##clipLength

Length of visible segment in frames

Example Grids

For further examples, see the grids file in folder :

 

C:\Nucoda\2014_1\root\monitorGrids\

 

and HUD's in folder :

 

C:\Nucoda\2014_1\root\monitorHUDs\

 

monitorGrid 1.0 -1

{

  name "DV Logo" ;

  units "normalised" ;

  textSize 64.0 ;

  color 1.0 0.0 0.0 0.8 ;

  text 0.1 0.05 "Digital Vision" ;

}

app-viewer_dv-text-cropped-scaled

 

monitorGrid 1.0 -1

{

  name "Poly" ;

  units "normalised" ;

  fill "solid" ;

  color 1.0 0.0 0.0 0.33 ;

  lineWeight 3.0 ;

  polygon 0.5 0.0 1.0 0.5 0.5 0.5 ;

}

app-viewer_poly-cropped-scaled

 

monitorGrid 1.0 -1

{

  name "Poly2" ;

  units "normalised" ;

  fill "open" ;

  color 0.0 0.0 1.0 1.0 ;

  lineWeight 3.0 ;

  polygon 0.5 0.0 1.0 0.5 0.5 0.5 ;

}

app-viewer_poly2-cropped-scaled

 

monitorGrid 1.0 -1

{

  name "AS Rect" ;

  units "normalised" ;

  fill "solid" ;

  color 1.0 0.0 0.0 0.33 ;

  rectExtraction 0.25 0.25 0.75 0.75 ;

}

app-viewer_rect-cropped-scaled

 

monitorGrid 1.0 -1

{

  name "Center Cross" ;

  lineWeight 3.0 ;

  units "normalised" ;

  color 1.0 1.0 1.0 1.0 ;

  polygon 0.0 0.0 0.0 1.0 1.0 1.0 1.0 0.0 ;

  polygon 0.0 0.0 0.0 0.5 1.0 0.5 1.0 0.0 ;

  polygon 0.0 0.0 0.0 1.0 0.5 1.0 0.5 0.0 ;

}

app-viewer_cross-cropped-scaled

 

monitorGrid 1.0 -1

{

  name "Safe Areas" ;

  lineWeight 2.0 ;

  units "normalised" ;

  color 1.0 1.0 1.0 1.0 ;

  polygon 0.05 0.05 0.05 0.95 0.95 0.95 0.95 0.05 ;

  polygon 0.1 0.1 0.1 0.9 0.9 0.9 0.9 0.1 ;

  polygon 0.0 0.0 0.0 1.0 1.0 1.0 1.0 0.0 ;

  lineWeight 3.0 ;

  line 0.45 0.5 0.55 0.5 ;

  line 0.5 0.45 0.5 0.55 ;

  anchor "top" "left" ;

  origin "top" "left" ;

  textSize 20.0 ;

  color 0.9 0.9 0.9 0.9 ;

  text 0.056  0.06 "PICTURE  SAFE" ;

  text 0.106  0.11 "TITLE  SAFE" ;

}

app-viewer_safe-cropped-scaled

 

monitorGrid 1.0 -1

{

  name "Greyscale" ;

  units "pixels" ;

  color 1.0 1.0 1.0 1.0 ;

  anchor "bottom" "left" ;

  origin "bottom" "left" ;

  image 0 0 "greyscale2.png" ;

}

app-viewer_image-cropped-scaled

 

monitorGrid 1.0 -1

{

  name "full info all" ;

  units "pixelsFullWindow" ;

 

  anchor "top" "left" ;

  origin "top" "left" ;

  textSize 14.0 ;

  text 20 20 "##segmentVersion" ;

  text 20 50 "Name:  ##srcName" ;

  text 20 80 "Description:  ##srcDescription" ;

  text 20 110 "Tape Name:  ##srcTape" ;

  text 20 140 "Keycode:  ##srcKeycode" ;

 

  anchor "bottom" "left" ;

  origin "bottom" "left" ;

  textSize 14.0 ;

  ...

  ...

 

  anchor "top" "right" ;

  origin "top" "right" ;

  textSize 14.0 ;

  text 20 20 "audio: ##audioName" ;

  text 20 50 "originator: ##audioOriginator" ;

  ...

}

app-viewer_hud-scaled

 

 

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