Chemical Crystallography Oxford: Control Of Colour

Within CAMERON it is possible to control the colour of each individual atom and bond and also the colour of the labels.

COLOUR
This is the header command for colour control - it may be followed by atom/element names if required. The syntax is:

 COLOUR C BLUE N YELLOW ...

The atom/elements are entered in pairs together with the colour name. A list of the current colours can be obtained by using 'INFO COLOUR'. There are two sets of colournames - those for normal colour and those for greyscale either may be used interchangeably as once the colour type is altered the colours are translated accordingly.

 COLOUR ALL colour

Colours all the atoms the given colour

GROUP

This sets the colour of all of the atoms in a given group. The syntax is:

 COLOUR GROUP groupname colourname

FRAGMENT COLOUR FRAGMENT n col will set the colour of all atoms in the fragment attached to atom n.

BACKGROUND Sets the background colour.

TEXT Sets the colour of the title and other annotation text.

MENUTEXT

BUTTON Selects the colours of the text and buttons in menu mode.

LABCOLOUR

This sets the colour of the labels and requires a single argument - the name of the new colour.

BONDS

Altering the colour of bonds is a more complicated procedure. It is followed by atoms/elements that define the bond and a colourname. These arguments are therefore entered in threes. For example, to make all carbon carbon bonds colour blue and all CU1 to oxygen bonds colour yellow you would use:

 COLOUR BONDS C C BLUE CU1 O YELLOW

ALL There is a further sub-command ALL which changes the colour of ALL of the bonds eg:

 COLOUR BONDS ALL PINK

makes all bonds colour PINK.

GROUP

This sub-command requires arguments in pairs - the group name and the new bond colour:

 COLOUR BONDS GROUP g1 LGREY

colours all bonds BETWEEN atoms in group g1 (both atoms in a bond must be in the group for its colour to be altered) to colour LGREY.

[Top] [Index] Manuals generated on Wednesday 8 November 2006

13.1: Example

To have a picture with the following requirements:

 All C atoms colour BLUE
 All N atoms colour PINK
 Cu1 colour YELLOW
 All Cu1 - O bonds colour LGREY
 All bonds between atoms in group g1 colour RED
 All other bonds colour GREEN
 All labels colour PURPLE

the commands would be:

 COLOUR C BLUE N PINK CU1 YELLOW
 BONDS ALL RED
 (do this first)
 BONDS CU1 O LGREY
 GROUP g1 GREEN
 LABCOLOUR PURPLE

BACKGROUND

The default background colour is WHITE but this can be changed as required by the COLOUR BACKGROUND colour command.

DEFAULT

The default colours for the elements are as defined in the PROP.CMN file -

 B - ORANGE
 Br,Cl,F,I - LGREEN
 C - GREEN
 D,H - LGREY
 N - BLUE
 O - RED
 P - PURPLE
 S - YELLOW
 SI - DGREY

These colours can be recovered if altered by using COLOUR DEFAULT which returns ALL atoms to their original colours.

NORMAL

GSCALE

These sub-commands allow the user to see how the hardcopy greyscale picture will look. COLOUR GSCALE changes the screen colours to the equivalent greyscale colours. The colour names GREYn (n=1,14) can be used to specify colour changes if required as COLOUR N PURPLE makes little sense on a greyscale picture.

       BLACK      BLACK
       BLUE       GREY1
       GREEN      GREY2
       ORANGE     GREY3
       RED        GREY4
       CYAN       GREY5
       MAGENTA    GREY6
       LGREY      GREY7
       GREY       GREY8
       LGREEN     GREY9
       LBLUE      GREY10
       LRED       GREY11
       PINK       GREY12
       PURPLE     GREY13
       YELLOW     GREY14
       WHITE      WHITE

Cameron Manual

Chapter 13: Control Of Colour

13.1: Example