Lazarus
Home
Help
TinyPortal
Search
Login
Register
Lazarus
»
Forum
»
Programming
»
Graphics and Multimedia
»
TAChart
(Moderator:
Ask
) »
Labels under my bars in barchart?[SOLVED]
Free Pascal
Website
Downloads
Wiki
Documentation
Bugtracker
Mailing List
Lazarus
Website
Downloads (Laz+FPC)
Packages (OPM)
FAQ
Wiki
Documentation (RTL/FCL/LCL)
Bugtracker
CCR Bugs
IRC channel
GIT
Mailing List
Other languages
Foundation
Website
Useful Wiki Links
Project Roadmap
Getting the Source
Screenshots
How to use the forum
About donations (wiki)
Bookstore
Computer Math and Games in Pascal
(preview)
Lazarus Handbook
Search
Advanced search
Recent
Forum slow
by
Curt Carpenter
[
Today
at 03:41:07 am]
Arabic text, problem on L...
by
Zaher
[
Today
at 03:29:16 am]
InstallAware Using Lazaru...
by
TRon
[
Today
at 02:55:41 am]
Generics - correct syntax
by
Blaazen
[
Today
at 01:57:40 am]
Demoscene The Champs Crac...
by
Gigatron
[
Today
at 01:05:16 am]
How to use the Event Log?
by
n7800
[
Today
at 12:47:25 am]
v3.99 code completion que...
by
440bx
[
Today
at 12:45:55 am]
FpDebug breakpoint on "be...
by
440bx
[
Today
at 12:36:23 am]
Access violation when re-...
by
TRon
[April 19, 2024, 11:44:51 pm]
[solved] how to get class...
by
jamie
[April 19, 2024, 11:34:44 pm]
Lazarus for Windows on aa...
by
Wallaby
[April 19, 2024, 10:52:25 pm]
Poll: Watches and Display...
by
440bx
[April 19, 2024, 07:13:51 pm]
Who is Indy mattias?
by
paweld
[April 19, 2024, 04:17:53 pm]
I just released a commerc...
by
BrassGear
[April 19, 2024, 03:17:28 pm]
Does anyone know why thes...
by
Laksen
[April 19, 2024, 03:04:14 pm]
Database standards OR Am ...
by
gidesa
[April 19, 2024, 02:37:56 pm]
How to: create DLL file f...
by
TRon
[April 19, 2024, 02:26:53 pm]
A fairly simple sound sol...
by
paweld
[April 19, 2024, 01:46:11 pm]
Access violation when ope...
by
Чебурашка
[April 19, 2024, 12:27:34 pm]
Step-into the field sette...
by
Martin_fr
[April 19, 2024, 11:31:48 am]
AI, NLP and CAI: Text Gen...
by
Dzandaa
[April 19, 2024, 11:03:26 am]
dwindows for Android
by
PierceNg
[April 19, 2024, 10:54:44 am]
create system unit from s...
by
Laksen
[April 19, 2024, 10:53:57 am]
[Solved] Find child contr...
by
Joanna
[April 19, 2024, 09:53:43 am]
FpDebug unexpected Assemb...
by
Marc
[April 19, 2024, 08:46:38 am]
« previous
next »
Print
Pages: [
1
]
Author
Topic: Labels under my bars in barchart?[SOLVED] (Read 4858 times)
Robert W.B.
Sr. Member
Posts: 328
Love my Wife, My Kids and Lazarus/Freepascal.
Labels under my bars in barchart?[SOLVED]
«
on:
February 16, 2017, 02:35:44 am »
I have a barchart with bottom labels 1 2 3 4 5 6 7 automaticly created.
How can I set labels like, one two three instead of 1 2 3?
Thanks in advance
«
Last Edit: February 16, 2017, 03:19:00 pm by Bob the Swede
»
Logged
Rob
wp
Hero Member
Posts: 11916
Re: Labels under my bars in barchart?
«
Reply #1 on:
February 16, 2017, 09:46:34 am »
Do you know the related tutorial?
http://wiki.lazarus.freepascal.org/TAChart_Tutorial:_BarSeries#Using_text_labels
The tutorial adds data via the datapoint editor. You probably add data to the series by calling the BarSeries' AddXY method. This method has an optional third parameter for data point labels:
Code: Pascal
[Select]
[+]
[-]
Chart1BarSeries1
.
AddXY
(
1
,
y_value1
,
'one'
)
;
Chart1BarSeries1
.
AddXY
(
2
,
y_value2
,
'two'
)
;
Chart1BarSeries1
.
AddXY
(
3
,
y_value3
,
'three'
)
;
// etc
Then, after adding all data set the Marks.Source of the BottomAxis to the ListSource of the BarSeries (this is where your data are stored), and set Marks.Style to smsLabel (you'll have to add TAChartUtils to "uses" for the compiler to find this identifier, or set the Marks.Style in ObjectInspector):
Code: Pascal
[Select]
[+]
[-]
uses
TAChartUtils
,
...
...
Chart1
.
BottomAxis
.
Marks
.
Source
:
=
Chart1BarSeries1
.
ListSource
;
Chart1
.
BottomAxis
.
Marks
.
Style
:
=
smsLabel
;
Now you should see the labels instead of the x values.
Logged
Robert W.B.
Sr. Member
Posts: 328
Love my Wife, My Kids and Lazarus/Freepascal.
Re: Labels under my bars in barchart?
«
Reply #2 on:
February 16, 2017, 01:49:39 pm »
Hi wp. I was into this solution but, I got External SIGSEGV in tacustomseries.pas
Any idea what might be wrong?
Logged
Rob
wp
Hero Member
Posts: 11916
Re: Labels under my bars in barchart?
«
Reply #3 on:
February 16, 2017, 02:03:54 pm »
No idea. Did you create the series? Double-click on the chart, select "Add" and pick the series type you want to add.
Logged
Robert W.B.
Sr. Member
Posts: 328
Love my Wife, My Kids and Lazarus/Freepascal.
Re: Labels under my bars in barchart?
«
Reply #4 on:
February 16, 2017, 02:24:15 pm »
Yes,the Barchartseries is created.
I try to set 7 string labels and the code is accepted but when in runmode I have got SIGSEGV!
for a:=1 to 7 do begin
Chart1BarSeries1.AddXY(a,a,IntToStr(mylabels[a]));
end;
Logged
Rob
Girlbrush
Jr. Member
Posts: 65
Re: Labels under my bars in barchart?
«
Reply #5 on:
February 16, 2017, 02:41:13 pm »
Code: Pascal
[Select]
[+]
[-]
for
a
:
=
1
to
7
do
begin
Chart1BarSeries1
.
AddXY
(
a
,
a
,
IntToStr
(
mylabels
[
a
]
)
)
;
end
;
My guess:
Substract 1 from a when used in your mylabels array (that runs from 0 to n).
Code: Pascal
[Select]
[+]
[-]
for
a
:
=
1
to
7
do
begin
Chart1BarSeries1
.
AddXY
(
a
,
a
,
IntToStr
(
mylabels
[
a
-
1
]
)
)
;
end
;
Logged
Getting back into programming after 8+ years.
wp
Hero Member
Posts: 11916
Re: Labels under my bars in barchart?
«
Reply #6 on:
February 16, 2017, 02:56:16 pm »
Why do you create the series label from the integer array mylabels? I thought you wanted words as labels.
Code: Pascal
[Select]
[+]
[-]
const
mylabels
:
array
[
1
..
7
]
of
string
=
(
'one'
,
'two'
,
'three'
,
'four'
,
'five'
,
'six'
,
'seven'
)
;
for
a
:
=
1
to
7
do
Chart1BarSeries1
.
AddXY
(
a
,
a
,
mylabels
[
a
]
)
;
«
Last Edit: February 16, 2017, 04:04:37 pm by wp
»
Logged
Robert W.B.
Sr. Member
Posts: 328
Love my Wife, My Kids and Lazarus/Freepascal.
Re: Labels under my bars in barchart?
«
Reply #7 on:
February 16, 2017, 03:18:38 pm »
Many thanks wp and Girlbrush.
Now I get it.
Have a nice weekend.
/Bob
Logged
Rob
Print
Pages: [
1
]
« previous
next »
Lazarus
»
Forum
»
Programming
»
Graphics and Multimedia
»
TAChart
(Moderator:
Ask
) »
Labels under my bars in barchart?[SOLVED]
TinyPortal
© 2005-2018