PowerPoint Interface: Add Slides, Insert Texts and Plots to PowerPoint

Description

A couple of functions to get R-stuff into MS-Powerpoint.

GetNewPP() starts a new instance of PowerPoint and returns its handle. A new presentation with one empty slide will be created thereby. The handle is needed for addressing the presentation afterwards. GetCurrPP() will look for a running PowerPoint instance and return its handle. NULL is returned if nothing's found. PpAddSlide() inserts a new slide into the active presentation. PpPlot() inserts the active plot into PowerPoint. The image is transferred by saving the picture to a file in R and inserting the file in PowerPoint. The format of the plot can be selected, as well as crop options and the size factor for inserting. PpText() inserts a new textbox with given text and box properties.

Usage

GetNewPP(visible = TRUE, template = "Normal")
GetCurrPP()
PpAddSlide(pos = NULL, pp = DescToolsOptions("lastPP"))
PpPlot(type = "png", crop = c(0, 0, 0, 0), picscale = 100, x = 1, y = 1,
       height = NA, width = NA, res=200, dfact=1.6, pp = DescToolsOptions("lastPP"))
PpText(txt, x = 1, y = 1, height = 50, width = 100, fontname = "Calibri", fontsize = 18,
       bold = FALSE, italic = FALSE, col = "black", bg = "white",
       hasFrame = TRUE, pp = DescToolsOptions("lastPP"))

Arguments

visible

logical, should PowerPoint made visible by GetNewPP()? Defaults to TRUE.

template

the name of the template to be used for the new presentation.

pos

position of the new inserted slide within the presentation.

type

the format for the picture file, default is "png".

crop

crop options for the picture, defined by a 4-elements-vector. The first element is the bottom side, the second the left and so on.

picscale

scale factor of the picture in percent, default ist 100.

x, y

left/upper xy-coordinate for the plot or for the textbox.

height

height in cm, this overrides the picscale if both are given.

width

width in cm, this overrides the picscale if both are given.

res

resolution for the png file, defaults to 200.

dfact

the size factor for the graphic.

txt

text to be placed in the textbox

fontname

used font for textbox

fontsize

used fontsize for textbox

bold

logic. Text is set bold if this is set to TRUE (default is FALSE).

italic

logic. Text is set italic if this is to TRUE (default is FALSE).

col

font color, defaults to "black".

background color for textboxdefaults to "white".

hasFrame

logical. Defines if a textbox is to be framed. Default is TRUE.

the pointer to a PowerPoint instance, can be a new one, created by GetNewPP() or the last created by DescToolsOptions("lastPP") (default).

Value

The functions return the pointer to the created object.

Details

See PowerPoint-objectmodel for further informations.

Examples

Run this code

# NOT RUN {
# Windows-specific example

# let's have some graphic
plot(1,type="n", axes=FALSE, xlab="", ylab="", xlim=c(0,1), ylim=c(0,1))
rect(0,0,1,1,col="black")
segments(x0=0.5, y0=seq(0.632,0.67, length.out=100),
  y1=seq(0.5,0.6, length.out=100), x1=1, col=rev(rainbow(100)))
polygon(x=c(0.35,0.65,0.5), y=c(0.5,0.5,0.75), border="white",
  col="black", lwd=2)
segments(x0=0,y0=0.52, x1=0.43, y1=0.64, col="white", lwd=2)
x1 <- seq(0.549,0.578, length.out=50)
segments(x0=0.43, y0=0.64, x1=x1, y1=-tan(pi/3)* x1 + tan(pi/3) * 0.93,
  col=rgb(1,1,1,0.35))


# get a handle to a new PowerPoint instance
pp <- GetNewPP()
# insert plot with a specified height
PpPlot(pp=pp,  x=150, y=150, height=10, width=10)

PpText("Remember?\n", fontname="Arial", x=200, y=70, height=30, fontsize=14,
       bold=TRUE, pp=pp, bg="lemonchiffon", hasFrame=TRUE)

PpAddSlide(pp=pp)
# crop the picture
pic <- PpPlot(pp=pp, x=1, y=200, height=10, width=10, crop=c(9,9,0,0))
pic


# some more automatic procedure
pp <- GetNewPP()
PpText("Hello to my presentation", x=100, y=100, fontsize=32, bold=TRUE,
       width=300, hasFrame=FALSE, col="blue", pp=pp)

for(i in 1:4){
  barplot(1:4, col=i)
  PpAddSlide(pp=pp)
  PpPlot(height=15, width=21, x=50, y=50, pp=pp)
  PpText(gettextf("This is my barplot nr %s", i), x=100, y=10, width=300, pp=pp)
}
# }