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## Business graphics library

Includig classes for creating:

- histograms -
  BgHistNew(sizeX, sizeY)
- histograms with cumulation -
  BgHistCumulNew(sizeX, sizeY)
- 100%-normalized histograms -
  BgHistNormNew(sizeX, sizeY)
- 3D-histograms -
  BgHist3DNew(sizeX, sizeY)
- linear diagram -
  BgLineNew(sizeX, sizeY)
- linear diagram with cumulation -
  BgLineCumulNew(sizeX, sizeY)
- linear 100%-normalized diagram -
  BgLineNormNew(sizeX, sizeY)
- circle diagram -
  BgCircleNew(sizeX, sizeY)
- ring diagram -
  BgRingNew(sizeX, sizeY)

### Attributes

Attribute name | Attribute value
sizeX | width picture
sizeY | high picture

### Methods/Functions

#### Creating

bg=BgHistNew(sizeX, sizeY)
bg=BgHistCumulNew(sizeX, sizeY)
bg=BgHistNormNew(sizeX, sizeY)
bg=BgHist3DNew(sizeX, sizeY)
bg=BgLineNew(sizeX, sizeY)
bg=BgLineCumulNew(sizeX, sizeY)
bg=BgLineNormNew(sizeX, sizeY)
bg=BgCircleNew(sizeX, sizeY)
bg=BgRingNew(sizeX, sizeY)
bg=BgNew(bgType, sizeX, sizeY) - total business graphics, where bgType - graphics type (see bggraph.ch)

#### Method bg:setData(arr[, legend][, alignLeg][, signat]) --> .t./.f.

Settings data,
arr - array of data
legend - legend, array
alignLeg - align legend (ALIGN_NONE | ALIGN_TOP | ALIGN_BOTTOM | ALIGN_LEFT | ALIGN_RIGHT), types defined in bggraph.ch signat - categoryes, array

#### Method bg:setInfo([title][, subTitle][, vrtTitle]) --> .t.

Create title, subtitle and title for vertical axis.

#### Method bg:setAverage(type[, value]) --> .t./.f.

On/Off draw middle-value line,
type - :
0 - nothing showed
1 - showed middle-value
2 - showed "critical" value
3 - showed middle and critical values
value - critical value. Attantion: at now worked only type=0 and type=1.

#### Method bg:setVolume([volume]) --> volume

On/Off volume. For all classes exclude BgHist3DNew.
volume - .t./.f. on/off volume
If called method without parameters, then volume shell be inverted.

#### Method bg:drawImage() --> .t./.f.

Drew graphic.

#### Method bg:storeImage(type, filename) --> .t./.f.

Store image to file.
type - type of file: GDFILE_PNG | GDFILE_GD | GDFILE_GD2 | GDFILE_XBM | GDFILE_JPEG , by default - GDFILE_PNG
filename - file name
Simple example:

    #include "gdinfo.ch"
    #include "bggraph.ch"

    local bg, data, legend, alignleg, signat

    bg := BgHistNew(300, 300)

    data := {{12, 156, -34, 104, 45, 78, -34},{34,67, 65,11,-45,-67,90}, {32, 56, 11, 43, 67, 34, 89}}
    legend := {"first", "second", 'third', 'fourth'}
    signat := {"Sun", "Mon", 'Tu', 'Wed', "Thur", "Fri", "Sat"}
    alignleg := ALIGN_RIGHT

    bg:setData(data, legend, alignleg, signat)
    bg:setInfo("Histogram", "One week of...", "Some digits on the axis...")

    /* drew graphic in volume */
    bg:setAverage(1)
    bg:setVolume(.t.)
    bg:drawImage()
    /* and store it */
    bg:storeImage(GDFILE_PNG, "hist1.png")

    /* now the same but 2D */
    bg:setAverage(0)
    bg:setVolume(.f.)
    bg:drawImage()
    bg:storeImage(GDFILE_PNG, "hist2.png")

Next example for BgNew():

    #include "gdinfo.ch"
    #include "bggraph.ch"

    local bg, data, legend, alignleg, signat

    bg := BgNew(BG_TYPE_HIST, 300, 300)

    data := {{12, 156, -34, 104, 45, 78, -34},{34,67, 65,11,-45,-67,90}, {32, 56, 11, 43, 67, 34, 89}}
    legend := {"first", "second", 'third', 'fourth'}
    signat := {"Sun", "Mon", 'Tu', 'Wed', "Thur", "Fri", "Sat"}
    alignleg := ALIGN_RIGHT

    bg:setData(data, legend, alignleg, signat)
    bg:setInfo("Histogram", "One week of...", "Some digits on the axis...")

    /* drew graphic in volume */
    bg:setAverage(1)
    bg:setVolume(.t.)
    bg:drawImage()
    /* and store it */
    bg:storeImage(GDFILE_PNG, "hist1.png")

    /* now the same but 2D */
    bg:setAverage(0)
    bg:setVolume(.f.)
    bg:drawImage()
    bg:storeImage(GDFILE_PNG, "hist2.png")

Histogram showed values different categoryes
Histogram with cumulation showed part every categories in sum total
100%-normolized histogram showed piece every categories in sum total
3D histogram showed values different categoryes by lines
Circle diagram showed part(values or percent) every categories in sum total
Ring diagram showed part(values or percent) every categories in sum total. Equivalent circle diagram but showed some lines of data

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© E.Kornilova, alena@itk.ru, 2000