KeshavAnandCode/FTCDecodeMain
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Added April Tag Class and Working Example

Browse Source
This commit is contained in:
KeshavAnandCode
2025-11-18 20:22:55 -06:00
parent 6b17bd4d46
commit c7f9028011
4 changed files with 193 additions and 41 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
TeamCode/build.gradle
View File

@@ -23,6 +23,17 @@ android {
}
}
repositories {
maven {
url = 'https://maven.brott.dev/'
}
}
dependencies {
implementation project(':FtcRobotController')
implementation "com.acmerobotics.roadrunner:ftc:0.1.25"
implementation "com.acmerobotics.roadrunner:core:1.0.1"
implementation "com.acmerobotics.roadrunner:actions:1.0.1"
implementation "com.acmerobotics.dashboard:dashboard:0.5.1"
}

76
TeamCode/src/main/java/org/firstinspires/ftc/teamcode/readme.md
View File

@@ -13,9 +13,8 @@ The easiest way to create your own OpMode is to copy a Sample OpMode and make it
Sample opmodes exist in the FtcRobotController module.
To locate these samples, find the FtcRobotController module in the "Project/Android" tab.
Expand the following tree elements:
FtcRobotController/java/org.firstinspires.ftc.robotcontroller/external/samples
FtcRobotController/java/org.firstinspires.ftc.robotcontroller/external/samples
### Naming of Samples
@@ -28,22 +27,22 @@ To summarize: A range of different samples classes will reside in the java/exter
The class names will follow a naming convention which indicates the purpose of each class.
The prefix of the name will be one of the following:
Basic: This is a minimally functional OpMode used to illustrate the skeleton/structure
of a particular style of OpMode. These are bare bones examples.
Basic: This is a minimally functional OpMode used to illustrate the skeleton/structure
of a particular style of OpMode. These are bare bones examples.
Sensor: This is a Sample OpMode that shows how to use a specific sensor.
It is not intended to drive a functioning robot, it is simply showing the minimal code
required to read and display the sensor values.
Sensor: This is a Sample OpMode that shows how to use a specific sensor.
It is not intended to drive a functioning robot, it is simply showing the minimal code
required to read and display the sensor values.
Robot: This is a Sample OpMode that assumes a simple two-motor (differential) drive base.
It may be used to provide a common baseline driving OpMode, or
to demonstrate how a particular sensor or concept can be used to navigate.
Robot: This is a Sample OpMode that assumes a simple two-motor (differential) drive base.
It may be used to provide a common baseline driving OpMode, or
to demonstrate how a particular sensor or concept can be used to navigate.
Concept: This is a sample OpMode that illustrates performing a specific function or concept.
These may be complex, but their operation should be explained clearly in the comments,
or the comments should reference an external doc, guide or tutorial.
Each OpMode should try to only demonstrate a single concept so they are easy to
locate based on their name. These OpModes may not produce a drivable robot.
Concept: This is a sample OpMode that illustrates performing a specific function or concept.
These may be complex, but their operation should be explained clearly in the comments,
or the comments should reference an external doc, guide or tutorial.
Each OpMode should try to only demonstrate a single concept so they are easy to
locate based on their name. These OpModes may not produce a drivable robot.
After the prefix, other conventions will apply:
@@ -52,22 +51,22 @@ After the prefix, other conventions will apply:
* Concept class names are constructed as: Concept - Topic - OpModetype
Once you are familiar with the range of samples available, you can choose one to be the
basis for your own robot. In all cases, the desired sample(s) needs to be copied into
basis for your own robot. In all cases, the desired sample(s) needs to be copied into
your TeamCode module to be used.
This is done inside Android Studio directly, using the following steps:
1) Locate the desired sample class in the Project/Android tree.
1) Locate the desired sample class in the Project/Android tree.
2) Right click on the sample class and select "Copy"
2) Right click on the sample class and select "Copy"
3) Expand the TeamCode/java folder
3) Expand the TeamCode/java folder
4) Right click on the org.firstinspires.ftc.teamcode folder and select "Paste"
4) Right click on the org.firstinspires.ftc.teamcode folder and select "Paste"
5) You will be prompted for a class name for the copy.
Choose something meaningful based on the purpose of this class.
Start with a capital letter, and remember that there may be more similar classes later.
5) You will be prompted for a class name for the copy.
Choose something meaningful based on the purpose of this class.
Start with a capital letter, and remember that there may be more similar classes later.
Once your copy has been created, you should prepare it for use on your robot.
This is done by adjusting the OpMode's name, and enabling it to be displayed on the
@@ -81,16 +80,14 @@ Each OpMode sample class begins with several lines of code like the ones shown b
```
The name that will appear on the driver station's "opmode list" is defined by the code:
``name="Template: Linear OpMode"``
``name="Template: Linear OpMode"``
You can change what appears between the quotes to better describe your opmode.
The "group=" portion of the code can be used to help organize your list of OpModes.
As shown, the current OpMode will NOT appear on the driver station's OpMode list because of the
``@Disabled`` annotation which has been included.
``@Disabled`` annotation which has been included.
This line can simply be deleted , or commented out, to make the OpMode visible.
## ADVANCED Multi-Team App management: Cloning the TeamCode Module
In some situations, you have multiple teams in your club and you want them to all share
@@ -112,21 +109,22 @@ Also.. Make a full project backup before you start this :)
To clone TeamCode, do the following:
Note: Some names start with "Team" and others start with "team". This is intentional.
Note: Some names start with "Team" and others start with "team". This is intentional.
1) Using your operating system file management tools, copy the whole "TeamCode"
folder to a sibling folder with a corresponding new name, eg: "Team0417".
1) Using your operating system file management tools, copy the whole "TeamCode"
folder to a sibling folder with a corresponding new name, eg: "Team0417".
2) In the new Team0417 folder, delete the TeamCode.iml file.
2) In the new Team0417 folder, delete the TeamCode.iml file.
3) the new Team0417 folder, rename the "src/main/java/org/firstinspires/ftc/teamcode" folder
to a matching name with a lowercase 'team' eg: "team0417".
3) the new Team0417 folder, rename the "src/main/java/org/firstinspires/ftc/teamcode" folder
to a matching name with a lowercase 'team' eg: "team0417".
4) In the new Team0417/src/main folder, edit the "AndroidManifest.xml" file, change the line that contains
package="org.firstinspires.ftc.teamcode"
to be
package="org.firstinspires.ftc.team0417"
4) In the new Team0417/src/main folder, edit the "AndroidManifest.xml" file, change the line that
contains
package="org.firstinspires.ftc.teamcode"
to be
package="org.firstinspires.ftc.team0417"
5) Add: include ':Team0417' to the "/settings.gradle" file.
5) Add: include ':Team0417' to the "/settings.gradle" file.
6) Open up Android Studios and clean out any old files by using the menu to "Build/Clean Project""
6) Open up Android Studios and clean out any old files by using the menu to "Build/Clean Project""

106
TeamCode/src/main/java/org/firstinspires/ftc/teamcode/subsystems/AprilTagWebcam.java Normal file
View File

@@ -0,0 +1,106 @@
package org.firstinspires.ftc.teamcode.subsystems;
import android.util.Size;
import com.acmerobotics.dashboard.telemetry.MultipleTelemetry;
import com.qualcomm.robotcore.hardware.HardwareMap;
import org.firstinspires.ftc.robotcore.external.hardware.camera.WebcamName;
import org.firstinspires.ftc.robotcore.external.navigation.AngleUnit;
import org.firstinspires.ftc.robotcore.external.navigation.DistanceUnit;
import org.firstinspires.ftc.vision.VisionPortal;
import org.firstinspires.ftc.vision.apriltag.AprilTagDetection;
import org.firstinspires.ftc.vision.apriltag.AprilTagProcessor;
import java.util.ArrayList;
import java.util.List;
public class AprilTagWebcam {
private AprilTagProcessor aprilTagProcessor;
private VisionPortal visionPortal;
private List<AprilTagDetection> detectedTags = new ArrayList<>();
private MultipleTelemetry telemetry;
public void init(HardwareMap hwMap, MultipleTelemetry TELE){
this.telemetry = TELE;
aprilTagProcessor = new AprilTagProcessor.Builder()
.setDrawTagID(true)
.setDrawTagOutline(true)
.setDrawAxes(true)
.setDrawCubeProjection(true)
.setOutputUnits(DistanceUnit.INCH, AngleUnit.DEGREES)
.build();
VisionPortal.Builder builder = new VisionPortal.Builder();
builder.setCamera(hwMap.get(WebcamName.class, "Webcam 1"));
builder.setCameraResolution(new Size(640, 480));
builder.addProcessor(aprilTagProcessor);
visionPortal = builder.build();
}
public void update() {
detectedTags = aprilTagProcessor.getDetections();
}
public List<AprilTagDetection> getDetectedTags() {
return detectedTags;
}
public AprilTagDetection getTagById(int id){
for (AprilTagDetection detection : detectedTags) {
if (detection.id ==id){
return detection;
}
}
return null;
}
public void stop(){
if (visionPortal != null){
visionPortal.close();
}
}
//Helper Functions
public void displayDetectionTelemetry (AprilTagDetection detectedId){
if (detectedId ==null){return;}
if (detectedId.metadata != null) {
telemetry.addLine(String.format("\n==== (ID %d) %s", detectedId.id, detectedId.metadata.name));
telemetry.addLine(String.format("XYZ %6.1f %6.1f %6.1f (inch)", detectedId.ftcPose.x, detectedId.ftcPose.y, detectedId.ftcPose.z));
telemetry.addLine(String.format("PRY %6.1f %6.1f %6.1f (deg)", detectedId.ftcPose.pitch, detectedId.ftcPose.roll, detectedId.ftcPose.yaw));
telemetry.addLine(String.format("RBE %6.1f %6.1f %6.1f (inch, deg, deg)", detectedId.ftcPose.range, detectedId.ftcPose.bearing, detectedId.ftcPose.elevation));
} else {
telemetry.addLine(String.format("\n==== (ID %d) Unknown", detectedId.id));
telemetry.addLine(String.format("Center %6.0f %6.0f (pixels)", detectedId.center.x, detectedId.center.y));
}
}
public void displayAllTelemetry (){
if (detectedTags ==null){return;}
telemetry.addData("# AprilTags Detected", detectedTags.size());
for (AprilTagDetection detection : detectedTags) {
if (detection.metadata != null) {
telemetry.addLine(String.format("\n==== (ID %d) %s", detection.id, detection.metadata.name));
telemetry.addLine(String.format("XYZ %6.1f %6.1f %6.1f (inch)", detection.ftcPose.x, detection.ftcPose.y, detection.ftcPose.z));
telemetry.addLine(String.format("PRY %6.1f %6.1f %6.1f (deg)", detection.ftcPose.pitch, detection.ftcPose.roll, detection.ftcPose.yaw));
telemetry.addLine(String.format("RBE %6.1f %6.1f %6.1f (inch, deg, deg)", detection.ftcPose.range, detection.ftcPose.bearing, detection.ftcPose.elevation));
} else {
telemetry.addLine(String.format("\n==== (ID %d) Unknown", detection.id));
telemetry.addLine(String.format("Center %6.0f %6.0f (pixels)", detection.center.x, detection.center.y));
}
} // end for() loop
}
}

37
TeamCode/src/main/java/org/firstinspires/ftc/teamcode/tests/AprilTagWebcamExample.java Normal file
View File

@@ -0,0 +1,37 @@
package org.firstinspires.ftc.teamcode.tests;
import com.acmerobotics.dashboard.FtcDashboard;
import com.acmerobotics.dashboard.config.Config;
import com.acmerobotics.dashboard.telemetry.MultipleTelemetry;
import com.qualcomm.robotcore.eventloop.opmode.OpMode;
import com.qualcomm.robotcore.eventloop.opmode.TeleOp;
import org.firstinspires.ftc.teamcode.subsystems.AprilTagWebcam;
@Config
@TeleOp
public class AprilTagWebcamExample extends OpMode {
MultipleTelemetry TELE;
AprilTagWebcam aprilTagWebcam = new AprilTagWebcam();
@Override
public void init() {
TELE = new MultipleTelemetry(
telemetry, FtcDashboard.getInstance().getTelemetry()
);
aprilTagWebcam.init(hardwareMap, TELE);
}
@Override
public void loop() {
aprilTagWebcam.update();
aprilTagWebcam.displayAllTelemetry();
TELE.update();
}
}